The heights of five-year-olds are Normally distributed with a mean of 42.5 inches and a standard deviation of 2.5 inches. A random sample of 16 five-year-olds is taken and the mean height is recorded. What would be the standard deviation of the sampling distribution of all possible samples of size 16?

0.16
0.63
2.5
2.66

Answers

Answer 1

Answer:

0.63

Step-by-step explanation:


Related Questions

how do I do probabillty

Answers

Answer:

Divide the number of events by the number of possible outcomes. This will give us the probability of a single event occurring. In the case of rolling a 3 on a die, the number of events is 1 (there's only a single 3 on each die), and the number of outcomes is 6.

Answer:

what the other guy said

Step-by-step explanation:

21 points Brailiest pic below

Answers

I think it would be C hopefully you get right

Tamekia and Marsha mow lawns during the summer to earn money. Tamekia determined that she can earn between $6.00 and $6.25 per hour. Marsha estimates that she earns between $7.50 and $8.00 per hour. About how much more money will Marsha earn than Tamekia if they each work 22 hours?

Answers

Answer:

$33 - $38.50

Step-by-step explanation:

Tamekia $6.00 -  $6.25

y = mx

y = (22)(6) = 132

y = (22)(6.25) = 137.50

$132 - $137.50

Marsha $7.50 - $8.00

y = (22)(7.5) = 165

y = (22)(8) = 176

$165 - $176

Answer:

Step-by-step explanation:

2x45-y3=

Find the number of terms for this polynomial - 17x ^ 5 + 17x ^ 3 - 18

Answers

Answer:

I love algebra anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

  −1(175−173+18)   (that sould be the solution)

Hope that helps

FREE! PLEASE ANSWER THE QUESTION TO WIN BRAINLIEST! (NO LINKS)
(Posting till I am out)

Question: Where should a line be drawn to make the below equation accurate?

Equation: 5 + 5 + 5 + 5 = 555

This one made me say "OHHHH-"

Answers

Answer:

In a plus sign

Step-by-step explanation:

Step-by-step explanation:

the line should be thought the (=) sign (≠)- like this

that means that it does not equal each other because I mean if you solve it, it made it    20=555 and 20 does not equal 555

5
4
3
M(-2, 1)
2
1
-5
1
2
5
4
5
х
-4 -3 -2 -1
-1
-2-
-3-
-4
N (5,-3)
-5-
What is me distance between points M and N?
ОА. 11
O C. 33
O B. V13
OD. V65

Answers

Answer:

5

Step-by-step explanation:

not you deleting it

3x+4=5 (2 step equations) NO BOTS

Answers

Answer:

x=1/3

Step-by-step explanation:

3x+4=5

-4       -4

3x=1

3x/3=1/3

x=1/3

At a hockey game a vendor sold a combined total of 102 sodas and hot dogs the number of hot dogs sold are 50 less than the number of sodas sold find the number of sodas sold and the number of hot dogs sold

Answers

Answer:

26 hotdogs

76 sodas

Step-by-step explanation:

x - 50 for hot dogs

x  for sodas

(x-50) + x = 102

2x -50 = 102

2x = 152

x = 76

76-50 = 26 hotdogs

76 sodas

Each quadrilateral below is a parallelogram . find the missing measures .

Answers

Answer:

AD = 8

DC = 15

m∠A = 112°

m∠B = 68°

m∠C = °

Step-by-step explanation:

If we're working with parallelograms, we can assume that each line and it's opposite are perfectly parallel.

To find AD, all you need to do is look to the opposite line, BC. Since This is a parallelogram, AD = BC, so AD is 8.

To find DC, you do the exact same. Find the opposite line that it is parallel to, in this case that's AB, and since AB = DC, you know that DC = 15.

To find m∠A, let's look at m∠D. Since m∠D = is 68°, We can use that knowledge to find m∠A. Since the two angles are right beside each other on the same line, together they would equal 180° if you added them up. But since you don't know what m∠A is, you just have to subtract 68 from 180.

180 - 68 = 112.

To find m∠B, We simply look back to m∠D. Since m∠B is directly opposite to m∠D, That means they have the same value, 68°.

And finally, to find m∠C, we do the same thing we did to find m∠B. m∠C is directly across from m∠A - we have already found m∠A, and we know that it is 112°. Therefore, m∠C is 112° as well.

match the following trig ratios with the correct equation for the triangle shown below (picture attached)

Answers

Answer:

a

Step-by-step explanation:

HELP!!!PLS!!!NOW!!!FAST!!!ASAP!!!

Answers

Answer:

lol what

Step-by-step explanation:

Answer:

:)

Step-by-step explanation:

yoo can some on help im just a dud that suck a ixl

Answers

I think the answer is 58, but im not 100% sure so im sorry if it is wrong

Look at the given figure. If the triangles are congruent, give the theorem. If not, select not congruent.

a) SSA
b) SSS
c) SAS
d) Not Congruent

Answers

Answer:

SSS.

Step-by-step explanation:

The 3 sides are congruent . The  ones that are marked and the middle line which is common to both triangles.

The answer is b hoped that helped

someone please help!!!

Answers

The answer is B. Hope this helps

Which equation shows the relationship
between the cost and the number of
sandwiches purchased?
A Con+ 4
B. C4
c. c A
D. C4n + 4

Answers

B because I said so and I need points

[tex]5^{-2}[/tex] × [tex]\sqrt[3]{8}[/tex]

Give your answer in decimal

Answers

Answer:

0.08

Step-by-step explanation:

∛8 = 2 as 2*2*2 = 8

[tex]5^{-2}[/tex] = [tex]\frac{1}{5^{2} }[/tex] = [tex]\frac{1}{25}[/tex]

[tex]\frac{1}{25}[/tex] * 2 = [tex]\frac{2}{25}[/tex] = 0.08

Write the decimal as a fraction or a mixed number in simplest form.

−2.7 But it is infinite its .777777777777777777777777777777777777777777777777777777777777777777777777777777 for ever

Answers

Answer:27777777777777/10000000000000

Step-by-step explanation:A decimal that keep repeating over and over again is called a repating decimal or irrational numbers as the classifying numbers that these.

Answer:

87.9990

Step-by-step explanation:

−2.7¯¯¯

Someone help and plz make sure it’s right :)

Answers

your answer is acute and right!!!
The answer is Acute.

Since none of the angles are right or more than right, it would be acute.

Desmond really like Legos. Last Saturday Desmond counted his Legos and realized that

he has 65 altogether! Desmond has 7 less green Legos than red Legos, and the amount of

blue Legos he has is two more than three times his red Legos. How many of each color

Lego does Desmond have?
Answer Quick.
Only reply if you have the answer please

Answers

Answer: 14 red, 7 green, 44 blue

Step-by-step explanation:

First, use the letter r as a variable to represent the number of red Legos. The number of green Legos (g) is 7 less than the number of red Legos, or g = r-7. The number of blue Legos (b) is 2 more than 3 times the number of red Legos, or b = 3r+2. The total number of Legos is the number of red + green + blue Legos, which can be represented as 65 = r+g+b.

Substitute the equations for g and b in. This should give you a final equation of 65 = r+(r-7)+(3r+2). To solve for the number of red Legos, first add up all of the terms to get 65 = 5r-5. Now add 5 to each side (70 = 5r). Finally, divide each side by 5 (r = 14).

To find the number of green Legos, substitute the number of red Legos (14) into the equation for the green Legos (g = r-7). This should get you the equation g = 14-7 which simplifies to g = 7.

To find the number of blue Legos, substitute the number of red Legos (14) into the equation for the blue Legos (b = 3r+2). This gives you the equation b = (3*14)+2. First, multiply 3 and 14 to get b = 42+2. Finally, add them together to get b = 44.

Steven needed to mail a holiday envelope to his Aunt Linda. He used $0.02 stamps and $0.10 stamps to mail the gift. If he used 15 stamps worth $0.78, how many of each type of stamp did he use?

Answers

Answer:Steven used 9 $0.02 stamps and 6 $0.10 stamps

Step-by-step explanation:

let number of $0.02 stamp  be =x

let number of $0.10 stamp  be =y

so that the number of stamps used can be expressed as

x+y=15

and the total price of stamps used equaling  $0.78 be expressed as

0.02x + 0.10y =0.78

Solving

x+y=15----1

0.02x + 0.10y =0.78---2

from equation 1 ,  x =15-y, putting the value of x into equation 2

0.02(15-y) + 0.10y =0.78

0.3 -0.02y + 0.10y  = 0.78

0.3 + 0.08y=0.78

0.08y=0.78-0.3

y=0.48/0.08 =6

y =6 stamps

 Putting bthe value of  y =6 into equation 1

x+6=15

x=15-6 =9

Steven used 9 $0.02 stamps and 6 $0.10 stamps

1. (1 point)
Determine the measure of 0 to the nearest degree.

a. 40°
b. 38°
C. 36°
d. 42°

Answers

I would say 36. Sorry if I'm mistaken
Brainliest would be nice

Find the amount accumulated after investing a principal P for t years at an interest rate compounded k times per year. P = $3,500 r= 5% t = 10 k = 4

A = ?

Answers

Answer:

A = 5,752.60

Step-by-step explanation:

P = $3,500

r= 5%

t = 10

k = 4

A = P(1 + r/k)^kt

= 3,500(1 + 0.05/4)^4*10

= 3,500(1 + 0.0125)^40

= 3,500(1.0125)^40

= 3,500(1.6436)

= 5,752.6

A = 5,752.60

What’s 1 + 1?
A. 0
B. 0
C. 0
D. 2

Answers

Answer:

its D

Step-by-step explanation:

[tex]1 + 1 = 2 \\ [/tex]

Helppp do any understand rhis ?

Answers

110+45= 155
180-155=25
x=25

Answer:

x= 25 degrees

Step-by-step explanation:

A triangle has a total of 180 degrees.

110 degrees + 45 degrees = 155 degrees

180 degrees - 155 degrees = 25 degrees

A function of x containing three ordered pairs of the form (x, y) is shown below. {(1, 3), (2, 7), (3, -9)}
What is the range of the function?​

Answers

Answer:

-9,3

Step-by-step explanation:

The range of the function is {3, 7, -9}.

What is a function?

A relation between a collection of inputs and outputs is known as a function. A function is a connection between inputs in which each input is connected to precisely one output. Each function has a range, co-domain, and domain.

Given:

A function of x containing three ordered pairs of the form (x, y) is shown below. {(1, 3), (2, 7), (3, -9)}.

The range of the function is,

= the number of value in the y-coordinate.

= {3, 7, -9}

Therefore, {3, 7, -9} is the range.

To learn more about the function;

brainly.com/question/28303908

#SPJ2

Remove the largest possible common factor. Check your answer by multiplication.
35x3 + 21x2 + 28x

Answers

Answer:

7x

Step-by-step explanation:

Please help me? I am confused.​

Answers

Answer:

5

Step-by-step explanation:

Take the cubed root of 125. In other words what number is multiplied by itself three times to get 125.

5x5x5= 125

Answer:

Step-by-step explanation:

Find solutions on the web

Factor using difference of cubes and set each factor equal to  

y=5,

Plzz help i been asking this question for way too long

Answers

Step-by-step explanation:

we know that that the stickers are 1 inch long and 1 inch wide.

We also know that 1x1=1

There are also 3 stickers.

1x3=3

3 is your area.

Could somebody do this for me

Answers

Answer:

Step-by-step explanation:

Josh and Katya both work at a library making $9 per hour if Katya work seven more hours than Josh last week and they made $279 combined how many hours did Katya work​

Answers

Answer:

19 hours

Step-by-step explanation:

You have 279. First, devide the 279 by 9(dollar amount).

279/9 = 31

So combined they work 31 hours. Subtract 7 from this, since we know Katya worked 7 extra hours. Youll now have 24.  (31-7 = 24)

Next, divide this number in half, which will get you what they both worked before Katya worked an extra 7 hours.

24/2 = 12.

Now that we know they both worked 12 hours, we can just add back the 7 hours Katya worked.

12+7 = 19.

So the answer to how many hours katya worked will be:

19 hours

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