What us the mean of 15, 16, 13, 19, 9, 20, and 16?

the mean is 15.42857

Step-by-step explanation:

15.42 or 15 3\7

Step-by-step explanation:

we find the mean by adding all the numbers and dividing the answer by the number of numbers

15±16±13 19 ±9±20±16=108

108÷7=15.42 or15 3\7

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: