Question

Janet wanted to determine her average phone call length over 90 days. She collected the phone bills and randomly picked ten entries to look at. The phone call lengths, in minutes, are shown below.

3, 8, 16, 8, 14, 3, 14, 3, 16, 3

Assuming that the sample was representative of all the entries on the bills, what was the mean number of minutes over 90 days?
It was C
Since the sample is representative of the entire population, the mean of the sample can be extended to the entire population.
Therefore, the mean number of missing scales on a minnow was 6.5 scale

Answer 1

@vera_ewing

Answer 2

@satellite73

Answer 3

@bohotness

Answer 4

@ganeshie8

Answer 5

yes

Answer 6

Help me please

Answer 7

which one do you think is the answer

Answer 8

A. 10.25
B. 8.1
C. 8
D. 8.8
C

Answer 9

which one do you yhink is your answer

Answer 10

C

Answer 11

i think you right :P

Answer 12

let me check

Answer 13

Thanks for helping

Answer 14

it was D

Answer 15

An environmentalist was investigating the impact of a chemical spill on the minnow population in a lake. He randomly caught and released 16 minnows, counting the number of missing scales on the fish, as shown below.

4, 3, 11, 4, 8, 7, 8, 11, 4, 3, 4, 7, 8, 11, 7, 4

Assuming that the sample was representative of the entire population in the lake, what was the mean number of missing scales on a minnow?
4
7.5
6.5
6.6

Answer 16

sorry :P i was checking
:P

Answer 17

C or D

Answer 18

do you know mean>?

Answer 19

yeah one that shows up most often

Answer 20

http://www.wolframalpha.com/input/?i=mean+3%2C+8%2C+16%2C+8%2C+14%2C+3%2C+14%2C+3%2C+16%2C+3

Answer 21

yes

Answer 22

so which one do you see the most?

Answer 23

ba at latex but right XD

Answer 24

\(\huge\color{blue}~corrcet\)