Question

If the variance of the data values in a population is 196, what is the standard deviation of the data values?

A. 16
B. 14
C. 12
D. 18

Answer 1

hi

Answer 2

@Daniellelovee

Answer 3

hello

Answer 4

could you help?

Answer 5

i think I can just give me a second

Answer 6

ok (:

Answer 7

you just have to square the number :)

Answer 8

14?

Answer 9

yup

Answer 10

thank you, could you help with a couple more?

Answer 11

sure

Answer 12

Each of 7 samples has a different standard deviation. How many of the 7 samples could be from the same population?

A. 7
B. 6
C. 4
D. 5

Answer 13

A?

Answer 14

yeah I think so but I'm not sure sorry :/ im not too great with statistics

Answer 15

its okay (: 2 head is better than one

Answer 16

If the standard deviation of the data values in a sample is 19, what is the variance of the data values?

A. 225
B. 169
C. 289
D. 361

Answer 17

D?

Answer 18

361 square root is 19

Answer 19

yup

Answer 20

If a sample of 77 students were taken from a population of 950 students, could refer to the variance of how many of the students' heights?

A. 950
B. 77
C. Both 77 and 950
D. Neither 77 nor 950

Answer 21

A?

Answer 22

idk this one sorry

Answer 23

make a new thread and have directrix help you :)
I have to go but I'll be back later in case you need help, is that I have psychics homeworks :/

Answer 24

oaky (: