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posledela
3 years ago
13

The distance that students drive to school is best modeled with a skewed right distribution that has a mean of 10 miles and a st

andard deviation of 2 miles. Suppose a sample of 100 students has been taken and the sample mean distance for the sample is calculated. Describe the shape of the sampling distribution of the sample mean
Mathematics
1 answer:
bearhunter [10]3 years ago
8 0

Answer:

The answer is "Approximately normal".

Step-by-step explanation:

sample sizen=100

Sample size n \geq 30

It is because C \perp T the sampling distribution of the sample means is approximately normal.

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I need help with 1 and 3 please
schepotkina [342]
For #1
city A's mean would be 10.5, then you would divide it by the number of numbers there is which is 5,So 10.5/5 is 2.1

city B's mean would be 11.6  then you would divide it by the number of numbers there is which is 5, So 11.6/5 is 2.32.

thats all I have don't know how to do #3 sorry 
4 0
3 years ago
Suppose that you ask three friends to go to the mall. each one has a 0.80 chance of saying yes. what is the probability that all
blondinia [14]
The probability is 0.512
5 0
4 years ago
Read 2 more answers
Is -4 and -5 <,>,or =
hjlf

-4 is greater than -5

4 0
2 years ago
How would I find x, I know it's an isosceles triangle but I so not know how to solve for it?????​
Wittaler [7]

Answer:

x=7 (if your teacher cares it could + or - 7)

Step-by-step explanation:

Okay, since it's a 90 degree triangle you can use the Pythagorean theorem

( a^2 + b^2 = c^2)

Since it's an isosceles triangle the other side is x because it's the same value.

x^2 + x^2= (7\sqrt{2} )^2

Add the left side

2x^2= 7^2 + \sqrt{2}^2 roots and square roots cancel each other out

So -> 2x^2= 49 x 2 =98

just solve for x.

x^2 = 98/2

x^2= 49

Square root both sides

x= 7

3 0
3 years ago
How can I do the work and explain this?
4vir4ik [10]

i have no clue what so ever -_-


7 0
3 years ago
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