Let x be a discrete random variable that possesses a binomial distribution with n=5 and p=0.87. What are the mean and standard deviation of this probability distribution? Round your answers to three decimal places, if required.

Answers

Answer 1

Answer:

[tex]Mean = 4.35[/tex]

[tex]SD = 0.5655[/tex]

Step-by-step explanation:

Given

[tex]n = 5[/tex]

[tex]p = 0.87[/tex]

Solving (a): Mean

[tex]Mean = np[/tex]

[tex]Mean = 5 * 0.87[/tex]

[tex]Mean = 4.35[/tex]

Solving (b): Standard Deviation (SD)

[tex]SD = np(1 - p)[/tex]

[tex]SD = 5 * 0.87(1 - 0.87)[/tex]

[tex]SD = 5 * 0.87 * 0.13[/tex]

[tex]SD = 0.5655[/tex]


Related Questions

f) graph the function in part e. (10 points)

Answers

Answer:

Step-by-step explanation:

Given: $1.99 as the fee per book (slope) & fixed fee of $3 (y-intercept)

The function can be written out f(x) = 1.99x + 3.

Express the value of f(x) for x = 0.

This would cancel out the slope, giving us a horizontal line on (0, 3).

f(0) = 1.99(0) + 3

f(0) = 3

You can try to graph the function using a software or by hand.

The graph is continuous because the x-values can have any input as a point.

Ella and some friends are going to a movie. Each movie ticket costs $5. Create an equation that shows the relationship between how many friends, n, attend the movie and the total cost in dollars, c.​

Answers

Answer:

lets say ella and 3 other friends went, so since there is 4 people in total, there will be 4 $5 dollar tickets, so you multiply 5 and 4 which is $20.

Step-by-step explanation:

A frame shop charges according to both the amount. Of framing needed to surround the picture and the amount of glass needed to cover the pictures
a. Find the area and perimeter of the trapezoid-shaped framed picture to the right
b. Identify whether the frame has to do with perimeter or area and the same with the glass
a. The area of the picture is
b. The perimeter is

Answers

Answer:

A: The area of it would be the equation (10x8)x(26)= 2,080 Inches

The perimeter would be (10+32+10+20)= 72

B: Perimeter on the top part of the frame

C: The area of it would be the equation (10x8)x(26)= 2,080 Inches

D: (10+32+10+20)= 72

Plz mark me brainsliestttt!!

Which is the better deal per car? 12 car washes for $100 or 5 car washes for $45

Answers

Answer:

12 Car washes for $100

Step-by-step explanation:

mark brainliest please.

Answer:

12 cars for $100

Step-by-step explanation:

This is because on car with this deal would cost $8.33 while with deal 2 one car would cost $9 and you want the cheaper deal in this case.

8 groups of ___ hundredths is 0.32

Answers

Answer:

the answer is 0.4 The reason is because 0.4 x8=0.32

Step-by-step explanation:

Please help
Trying to help daughter do virtual. And I stink in this stuff!
w(t) = 3t – 1; t = 5

Answers

The answer is W =14/5 I believe

i’ll mark brainlest! pls help :(

Answers

Answer:

square root: [tex]\sqrt{61}[/tex]

decimal: 7.81

Step-by-step explanation:

Place the terms into the correct column that describes the reactions of photosynthesis.

Word bank:
Processes: ATP Synthase, Calvin Cycle, Electron Transport Chain, Photosystem I, Photosystem II

Locations: Stroma, Thylakoids membrane

Reactants: ADP, ATP, Carbon Dioxide, NADP+, NADPH, Sunlight, Water

Products: ADP, ATP, NADPH, NADP+, Oxygen, Sugars

Answers

Answer:

Please find the correct placement in a tabular format in the attached image. The explanation has been done below.

Step-by-step explanation:

The process of photosynthesis occurs in two stages viz: light-dependent and light-independent reactions.

- In the light-dependent reaction, which occurs in the THYLAKOID MEMBRANE of the chloroplast, energy from SUNLIGHT is used to breakdown WATER to release electrons in order to synthesize ATP and NADPH from ADP and NADP+. In a nutshell, the processes involved in this stage are Electron transport chain, photosystem I, photosystem II, and ATP synthase.

- In the light-independent stage, also called CALVIN CYCLE, the ATP, NADPH, and CO2 are used as reactants to synthesize SUGAR (glucose), NADP+ and ADP (which goes back to the first stage) as products.

use the graph if y=f(x) below to find f(4)

Answers

Answer:

there is no graph. can you edit the question?

Answer:

Ok:

Step-by-step explanation:

Welp, I don't see the graph but I can tell you what to do. You find x = 4, and draw a vertical line up. Once your line reaches the graph, see what the y value is. If the question is nice, you should get an exact integer number

light travels 3 x 10^5 kilometers in one second. how far does it travel in 7.6 seconds?

Answers

Answer:

1800000 kilometers

Step-by-step explanation:

i think im not 100% sure

HELP : calculating slope between two points.

Answers

Answer:

(1.)3.5 (2.)-3 (3)0

Step-by-step explanation:

if right comment please

Your answers are
1. m=7/2
2.m=-3
3.m=0

The new number, 550, is 200 more than the original number. What is the approximate percent change?
The percent change is approximately 33%.
The percent change is approximately 55%.
The percent change is approximately 150%.
The percent change is approximately 175%.

Answers

Answer: I believe the answer is b. 55%

Step-by-step explanation:

200/ (550-200) * 100

Answer:

Ps the answer IS 55%

Step-by-step explanation:

Just took quiz on edg 2020

You want to conduct a survey to determine the proportion of people who favor a proposed tax policy. How does increasing the sample size affect the size of the margin of error?
a. increasing n decreases E.b. increasing n increases E.c. increasing n will cause E to double in value.d. increasing n will not effect E.

Answers

Answer:

a. increasing n decreases E

Step-by-step explanation:

The sample size refers to the number (n) of units or observations taken from a population for a study. The results obtained from this sample size can be used to make generalizations about the entire population. The margin of error (E) is a measure of the sampling error or the percentage of the difference between the results obtained from the study and the true population value. The relationship between the sample size (n), and the Margin of error (E) is an inverse. That means

Sample size (n) ∝ 1/E

So, as the sample size increases, the margin of error decreases. This would be even more true if the accurate procedures for the experiment are followed.

1) If a bookshelf is 28 inches long, how many 1 inch books will fit on the bookshelf?

Answers

Answer:

28

Step-by-step explanation:

28/1 = 28

28 books would be able to fit on the bookshelf is it is 28 inches an the books are all 1 inch you can fit 28


Help ASAP
Add these expressions
(3x+15) + (4x+13)

Answers

Answer:7x+28

Step-by-step explanation:

Answer:

7x + 28

Step-by-step explanation:

Line up the columns just like with standard addition.  Keep the x numbers in the same columns and keep the integers in their columns.  It will look like this:

               3x     +     15

PLUS       4x     +     13

              ----------------------

                7x     +     28

Question 3 options: If 2y+13=y+5 then 2y + 1 = 3y + ___. What number would go in the blank? If you continued to solve, would y = - 14? state either yes or no

Answers

Answer:

Step-by-step explanation:

Given the expression 2y+13=y+5

To get the value of y, we willow the following steps:

Subtract 2y to both sides:

2y+13-2y = y+5-2y

13 = -y+5

subtract 5 from both sides:

13-5 = -y+5-5

8 =  -y

-y = 8

multiply both sides by -1

-(-y) = -8

y = -8

Hence the value of y = -8 not -14

So NO,if you continue to solve, y would not be -14

Graph the line passing through (-6,-3) whose slope is m=2

Answers

Answer:

Start at (−6,−3) and count up 2 units and right 1 unit to find a second point. Connect the two points with a line to find the graph.

Step-by-step explanation:

Start by plotting the point (−6,−3). Use the slope formula m=rise/run to identify the rise and the run.

m=2

rise/run = 2/1

rise = 2

run = 1

Start at (−6,−3) and count up 2 units and right 1 unit to find a second point. Connect the two points with a line to find the graph.

Is the equation 6x-15y=-12 in standard form? Why or why not

Answers

Answer:

2x-5y=-4

Step-by-step explanation:

No, the GCF is 3 not 1

help me please !!!!!!!

Answers

Answer:

I don't see the screenshot and i'm not going to download it...

Step-by-step explanation:

yikes

Which of the following is not one of the Greek roots explored in this unit?
a. sin
C syn
b psyche
d. neuron
Please select the best answer from the choices provided

Answers

Answer:

Its A >_<

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

How many solutions does this problem have 7(y+3)=5y+8

Answers

Answer:

7(y+3)=5y+8

y= -3/2  One solution

Step-by-step explanation:

solve the following quadratic equation using the quadratic formula -2x^2-3x+4=0​

Answers

The answer is on the picture!

-74.25
That the right answer

Answers

Answer:

Okay...

Step-by-step explanation:

1. A = {2, 4, 6, 8, 10), B = {1,2,3,4,5,6,7,8,9,10}
Find A UB and An B.
(7​

Answers

Answer:

AUB=2,4,6,8,10 & AnB=1,3,5,7,9

Which number has the lowest value?
A1/5B0.25C0.21D1/3

Answers

Answer:

A

Step-by-step explanation:

Answer:1/3 is bigger

Step-by-step explanation:

A cash register contains q quarters. Write an algebraic expression that represents the total amount of money (in dollars).

Answers

Answer:

0.25q

Step-by-step explanation:

A cash register is a machine used in small business that sums, display and records the total amount made by each sale. A cash register also has a drawer which is used to store money.

A quarter is a coin in the United States which is 25 cents.

Converting 25 cents to dollars:

100 cents = $1

25 cents = 25 cents × $1 / 100 cent = $0.25

The total amount of money registered = number of quarters × $0.25

The total amount of money registered = q × $0.25 = 0.25q

Who’s good at 11 grade math pleasee help me comment o this :(

Answers

Im in 10th but I take advanced courses :)

P.9.115

A local bank charges $9 per month plus 24 per check. The credit union charges $7 per month plus 4e per chock. How many checks should be written each month to make the credit union a bottor deal?

The credit union is a better deal when writing or fower checks per month

Answers

This question was not properly written

Correct Question

A local bank charges $9 per month plus 2c per check. The credit union charges $7 per month plus 4cper check. How many checks should be written each month to make the credit union a better deal?

The credit union is a better deal when writing fewer checks per month

Answer:

Writing between 0 to 99 checks makes the credit union a better deal.

Step-by-step explanation:

Let the number of checks be represented by x

Note, 1 cent = $0.01

A local bank charges $9 per month plus 2c per check.

2c = $0.02

$9 + 0.02× x

= 9 + 0.02x

The credit union charges $7 per month plus 4c per check.

4c = $0.04

= $7 + 0.04 × x

= 7 + 0.04x

The credit union is a better deal when writing fewer checks per month

Hence:

Credit union < Local bank

7 + 0.04x < 9 + 0.02x

Collect like terms

0.04x - 0.02x < 9 - 7

0.02x < 2

x < 2/0.02

x < 100 checks

Hence, writing less than 100 checks (i.e writing between 0 to 99 checks) makes the credit union a better deal.

If jake had 2 apples and Albert ate 1 how many apples are left?​

Answers

One apple would be left
Answer: 1 Apple

Explanation: If Jake has 2 apples and 1 is taken away Jake 1 apple left.

The equation y = 2.50x determines the total cost, y, of buying carnival tickets

Answers

Step-by-step explanation:

The given equation or expression is used to determine the total cost of buying carnival tickets.

the total cost is y

Also from the expression the cost of a ticket is $2.5

and x represents the number of tickets

now say x=5, that is 5 tickets, then the cost of buying the 5 tickets is given as

y=2.5(5)

y=12.5

Hence the cost of 5 tickets is $12.5

Other Questions
You invest 1,000 in a project today. the project will generate a cash flow of 3186 three years from now. if the interest rate is 3%, what is the net present value of the project? The following saying is an example of a _______ device. Why is this _______ device easy for some people to remember? (Hint: try reading it out loud.) Thirty is hot, twenty is nice, ten is cold, and zero is ice. i need help on this really fast Hydrogen bonds can form between regions of polar molecules that areA- negatively chargedB- non-polarC- oppositely chargedD- uncharged (Neutral) You and three friends went shopping. All of youbought the same shirt and pants except you did notbuy the pants for $12. The total was $92. Write anequation to determine how much each of yourfriends paid for their outfit.I have till 2 and I need help Plz help! :) :D I will mark you as BRAINLIEST!!!Physical and Chemical Properties of MagnesiumHere is an EXAMPLE of how it has to be like. Instead of Mercury, you HAVE to do MagnesiumPhysical Properties of Mercury: Im a highly stable element, so you can count on meChemical Properties of Mercury: I love to travel but I do corrode aluminum so we wont be flying off on adventures in airplanes planes anytime soon SAT Scores SAT Scores Group 1 Group 2 1520 1510 SAT Scores Group 3 SAT Scores Group 4 1620 1480 1630 1480 1700 1570 1480 2100 1520 1400 1580 1800 1510 1800 1400 1300 1530 1930 1300 1250 1430 2150 1700 1400 2000 1340 1610 1430 1800 1580 1580 1390 1410 1530 1520 1520 1390 1610 The SAT scores of 4 groups of 10 students are shown. Which group has the greatest range? A) Group 1 B) Group 2 Group 3 D) Group 4 How can you tell if hair was forcibly removed? At the local coffee shop, they sell a reusable mug for $6. If you use the mug for a refill, the refill costs $1.30. Last month Jason spent $29.40 for the mug and refills. Which equation can be used to determine the number of refills, r, Jason purchased last month? How did the early Minoans defend themselves?A. They were totected by ships at sea.B .They relied on the gods to defend them.C. They were protected by strong fortifications. D.They had large armies to defend against invasion. How can peer relationships positively affect health? A carnivore that eats other carnivores is a... Why is the Declaration of Independence still relevant today four reasons would be great! Read the excerpt from A Short Walk Around the Pyramids and through the World of Art.If you visit Athens, you will not find the Horse of Selene or its neighbors. They were taken from the Parthenon early in the nineteenth century, shipped to London, and placed in the British Museum. And they were given a new name, the Elgin Marbles, after Lord Elgin, the man who brought them to England. Those marble shapes, even though they are now battered and broken, weave a spell around everyone who comes to them.A map of Europe would be a helpful text feature, becausereaders could see the distance between Athens and London.readers could see the Horse of Selene.readers could understand the size of the sculpture.readers could see what Lord Elgin looked like. In the winter, a town has a low of -5F. Inthe summer, the same town has a high of98F. What is the difference in temperature?[? ]F A presidential election is won by the candidate who A: receives a majority of electoral votes.B: receives a majority of the popular vote.C: wins the popular vote in more than 25 states.D: wins the primary election in a majority of states. What is the equation in point slope form for a linear function with a slope of m=4 that passes through the point (2,7)? Josh heated a certain amount of blue copper sulfate crystals to get 2.1 g of white copper sulfate powder and 1.4 g of water. What is most likely the mass of the blue copper sulfate that he heated and why? In a small library , there are 5 nonfiction books for every 9 fiction books There are 130 a . How many fiction books are there ? Use a cofunction identity to rewrite cos(120 (30 + a)).