What’s the answer to number 13 14 and 15

14. It is biased, because the store manager sends the survey to a customer who registered. I will send the survey to a customer who is not registered and who is new to the store.

15. This is unbiased, because they chose the students randomly.

Step-by-step explanation:

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

answer: idk

step-by-step explanation: