For the data set 6, 5, 10, 11, 13, the mean, x is 9. What is the standard
deviation?
The formula for the sample standard deviation is s-
2(x - 5)?
- 1
Use the table to help you.
Х
X-
(x-x)?
9
16
5
10
11
13
3
-4
1
2.
4
16
1
4
16
46
Sum
Round your answer to the nearest tenth.

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

What is the product? a-3/15a × 5/a-3

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate. true or false?