Question

over a two week period Julie had the following number of math homework problems given each day:20,0,7,10,11 0,25,15,1 find the mean,median,mode, and range of the homework problems

Answer 1

Hello!

First, review what each is.

Mean is calculated by adding all the numbers in a data set and dividing by how many numbers there are.

Median is the middle number when ordered from least to greatest.

Mode is the number that appears most often.

Range is the difference between the greatest and least number.
_________________________________________________________

Mean

20 + 0 + 7 + 10 + 11 + 0 + 25 + 15 + 1 = 89

There are 9 numbers

89 ÷ 9 = 9.9(rounded)

Mean ⇒ 9.9(rounded)
___________________________________________________________

Median

Order the numbers

0, 0, 1, 7, 10, 11, 15, 20, 25

Median ⇒ 10
____________________________________________________________

Mode

The mode is 0 because it is the only number that appears twice, while the others appear once.

Mode ⇒ 0
___________________________________________________________

Range

Greatest number = 25
Lowest number = 0

25 - 0 = 25

Range ⇒ 25

Answer 2

Mean: Add all the numbers and divide by the amount of numbers.

20 + 0 + 7 + 10 + 11 + 0 + 25 + 15 + 1 = 89
89/9 = 9.889 (rounded)

Mean = 9.889 (rounded)

Median: Reorder from least to greatest, and the middle number is the median.
0, 0, 1, 7, 10, 11, 15, 20, 25

The middle number is 7

Median = 7

Mode: The number that shows up the most.
Mode = 0, which shows up one time more than all the other numbers

Range: Subtract the greatest number with least number

25 - 0 = 25

Range = 25


hope this helps