An unfair coin with a probability of tails as 0.55 is tossed 8 times. Find the probability that a tail shows up more than 2 times.

Answers

Answer 1

Answer:

0.9115

Step-by-step explanation:

Using a binomial probability function :

P(x =x) = nCx * p^x * (1 - p)^(n - r)

Probability of success, p = 0.55

1 - p = 1 - 0.55 = 0.45

n = 8

x = 2

P(x > 2 ) = p(x = 3) + p(x = 4) + p(x = 5) + p(x = 6) + p(x = 7) + p(x =8)

To save computation time, we could use the binomial probability calculator :

P(x > 2 ) = 0.9115


Related Questions

which number is a zero of f(x) = 2x (x + 7) ( x-4)​

Answers

Answer:

0, -7, 4

Step-by-step explanation:

Zeros of a function are values that make the function = 0

So, f(x) = 2x(x + 7)(x - 4) = 0

                x = 0 or x + 7= 0  or x - 4 = 0

                                   x = -7           x = 4

Note:  If you were to graph f(x), the graph would intercept the x-axis at 0, -7, and 4

52% of what number of 109

Answers

Answer:

209.615384

Step-by-step explanation:

Answer:

if you buy an item at $109 with $52 discounts, you will pay $57 and get 47.71% discount.

Step-by-step explanation:

the top of a table has a length of 7 feet and a width of 5 feet. what is the area of the table top

Answers

Answer: 35ft

Step-by-step explanation:

The area for a rectangle or square is Width times Length (W*L)

So we can take our given measurements and multiply them

[tex]5*7=35[/tex]

need help ASAP, WILL MARK BRAINLIST​

Answers

2p²+3p²+5-1

2p²+3p²+4

5p²+4

Please help in this

Answers

Explanation is in the file

tinyurl.com/wpazsebu

70% of x is 63. Write an equation to find the value of x, and solve the equation. What is the value of x?

Answers

Answer:

70%of x = 63

70/100 × x = 63

x=63×100/70

x=90

Step-by-step explanation:

g(n) = 20(x+15) What is g(10)?

Answers

Answer:

500

Step-by-step explanation:

g (10) = 20(x+15)

= 20 (10+15)

= 20 (25)

= 500

Your teacher gave you 45 of a bag of candy, but she only gave your friend 23 of a bag.

How much more of the bag did your teacher give you than your friend?

Answers

Answer:

you got 12 more then your friend, 45-23

Step-by-step explanation:

Which expression is equivalent to 28a - 7b?
A. 4(7a - 7b)
B. 7(28a - b)
C. 7(4a - b)
D. 7(a - 7b)

Answers

Maybe c because 7x4 28

Can someone help me pls :(

Answers

The answer is C
30x-10

Answer:

30x-10

Step-by-step explanation:

6(5x−2)+2

Distribute:

=(6)(5x)+(6)(−2)+2

=30x+−12+2

Combine Like Terms:

=30x+−12+2

=(30x)+(−12+2)

=30x+−10

Answer:

=30x−10

someone help ME PLZZZZ

Answers

Answer:

a+b

Step-by-step explanation:

one cookie at the bakery cost $0.65 two cookies cost $1.20 and three cookies cost $1.75 how much will half a dozen cookies cost

Answers

Answer:

half a dozen cookies would cost  $3.90

Step-by-step explanation:

Help!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

4

Step-by-step explanation:

Find the value of x. Round to the
nearest tenth.
26
12
Х
x = [ ?

Answers

Answer:

x = 10.8

Step-by-step explanation:

cos 26° = x/12

0.8988 = x/12

x = 10.785

PLEASE HELP!!

Measure the lengths of the following segments in inches.

Answers

the first on is 12in and the 2nd is 7in Hope this helps :)) mark me brainiest

Find the value of x.
x-11
x-5
A-8
.
A. 17
B. 20
C. 22
D. 15

Answers

Answer:

the answer is D hope it hleps

Elianna studied data collected on the school hockey team for one season. She noticed that a player on the team had 13 successful shots out of a total of 50 attempted shots. To find the percentage of the total shots attempted by this player that were successful, Elian set up the equivalent ratios below.

Answers

Answer: See explanation

Step-by-step explanation:

Your question isn't complete but based on the information given in the question, since she noticed that a player on the team had 13 successful shots out of 50 attempted shots.

The percentage of the total shots attempted by this player that were successful will be:

= 13/50 × 100

= 26%

Which expression is equivalent to the area of square A, in square inches?
A
10 in.
24 in.
(10)(24)
o
10(24)
Saun and Exit

Answers

Answer:

10^2+24^2

Step-by-step explanation:

got 100% on the quiz

4x^2+9x+10+3x^2+7x+2​

Answers

Answer:

7x2+16x+12

Step-by-step explanation:

=4x2+9x+10+3x2+7x+2

=(4x2+3x2)+(9x+7x)+(10+2)

=7x2+16x+12

what’s the equation of the line shown above?

Answers

Answer:

answer is B)y=3x+2

Step-by-step explanation:

here ya go, have a nice day

btw if you can give me brainliest it will help a lot, thanks

What type of punishment did the police officer give to the air pollution?

Answers

Answer:

Mistm Demeanor I think.. Hope this helps, tell me if it's incorrect!

Step-by-step explanation:

A police officer can not punish air pollution but can enforce laws and regulations to protect the environment.

What is air pollution?

Air pollution means the presence of harmful substances in the air that can cause harm to all living beings.

We have,

Air pollution is not a living being so it can not be punished by a police officer.

A police officer or government authorities can enforce laws and regulations to reduce air pollution to protect all living beings and the environment.

Some of the measures are:

- Setting emissions standards for automobile and related industries

- Promoting the use of clean energy resources.

- Encouraging individuals and entities to adopt sustainable practices

Thus,

A police officer can not punish air pollution but can enforce laws and regulations to protect the environment.

Learn more about air pollution here:

https://brainly.com/question/18951513

#SPJ2

Can someone plz help real quick?

Answers

1 cm: 3 m. you just have to divide the 15 by the 5 :)

Answer:

1 Cm - 3 Meters

Step-by-step explanation:

Just do 15 (meters) divided by 5 centimeters. 15 divided by 5 is 3.

LJKL is a right angle. What are
MLJKM and mZMKL?
M
(12x + 3)^
T6x – 3)°
L
K

HURRY PLSSSS

Answers

Answer:

<MKL=27

<JKM=63n

I have messed up in the pic above it I s 63 not 67

Which statement about f(x) = x^2 + 16x + 3 is true

A. The function has a maximum value of 3
B. The function has a maximum value of 16
C. The function has a minimum value of -8
D. The function has a minimum value of -61

Answers

Answer:

D

Step-by-step explanation:

Given a quadratic function in standard form

f(x) = ax² + bx + c ( a ≠ 0 )

• If a > 0 then minimum value

• If a < 0 then minimum value

For

f(x) = x² + 16x + 3

a = 1 > 0 then f(x) has a minimum value

The minimum is the value of the y- coordinate of the vertex.

The x- coordinate of the vertex is

[tex]x_{vertex}[/tex] = - [tex]\frac{b}{2a}[/tex]

Here a = 1 and b = 16 , then

[tex]x_{vertex}[/tex] = - [tex]\frac{16}{2}[/tex] = - 8

To find the y- coordinate of the vertex, substitute x = - 8 into f(x)

f(- 8) = (- 8)² + 16(- 8) + 3 = 64 - 128 + 3 = - 61

Thus the function has a minimum value of - 61 → D

Find the slope of the line that passes through -3,62 and 93,82

Answers

Answer:

5/24

Step-by-step explanation:

A rectangle has a length of 4 meters. The width is 2 meters more than the length. Work out the area.

Answers

Answer:

24 m^2

Step-by-step explanation:

Given data

Length= 4 meters

Width= 2+4= 6 meters

We know that the expression for the area of a rectangle is given as

A= Lenght* Width

A= 4*6

A= 24m^2

Hence the area is 24 m^2

Plz help plz
What specific measure of a geometric figure is shown in the image?

A. A 15° angle

B. A 180 mm side length

C. A 165 mm side length

D. A 165° angle

Answers

Answer:

A 165° angle

Step-by-step explanation:

I zoomed in on the picture and it was a 165° angle

There are 10 marbles in a paper bag, 6 of which are red. The rest are blue. You play a game with your friend. If you draw a red marble, you win. If you draw a blue marble she wins. Is this a fair game?

Answers

No, because you have 1 more marble than her. While you have 6 marbles in the bag, she has 4; there’s a 3/5 chance that you’ll win, and a 2/5 chance that she’ll win.

7th grade math
plz help asap
the picture is attached
10 POINTS

Answers

Answer:

1. A, C, and E

2. 13.5

3. -3

4. $3.39

5. 9 1/4 miles

Step-by-step explanation:

Option A
Option B
Option C
Option D​

Answers

Answer:

It's B

... because if you evaluate it it'll be 9x - 6xy, and 2xy + 2x^2

-6xy and 2xy are like terms

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