I need help with this

11.a

Range: 16

To find the range, you subtract the biggest number(52) from the smallest number(36)

52-36=16

11.b

Mean: 43.75

To find the mean, you have to add all the numbers, then divide by the total amount of numbers

(36+45+52+40+38+41+50+48)/2 = 43.75

Median: 43

To find the median, the numbers must be put in either ascending or descending order and the middle must be found. In this case, there were 2 numbers(41 and 45) so you add the two and divide by 2.

36,38,40,41,45,48,50,52       (41+45)/2=43

Mode: N/A

The mode is the number that occurs the most and in this case each number is only seen once , so there is no mode

I am going to put the answers for the rest since I've explained the process

12a.

Range: 3655

12b.

Mean: 1014.166667 = 1014.17

Median: 608.5

Mode: N/A

13a.

Mean: You: 4  Friend: 8

Median: You: 17 Friend: 17

Mode: You: N/A   Friend: 20

13b.

Your Friend

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.