Mean, Median, Mode, Range, Standard Deviation

Mean

100

Find the mean

2, 3, 4

3

200

Find the mean after adding 3 to each number.  

14, 17, 13, 14

17.5

300

Find the mean after multiplying each number by 5

60, 90, 95, 85, 80

410

400

Find the mean after adding (-18) to each number.

148, 163, 163, 181, 197

152.4

500

Find the mean after multiplying each number by 0.25

32,42,52,62,72,82,92,102

16.75

Median

100

Find the median

24,25,6,10,35,8,4,3,

3,4,6,8,10,24,25,35 

Answer:9

200

Find the median after adding 3 to each number. Round to one decimal place. 

68,91,12,32,7,15,13,18

7,12,13,15,18,32,68,91 

Answer:19.5

300

Find the median after adding 12 to each number.

29,29,4,6,12,28,12,14,6

4,6,6,12,12,14,28,29,29

Answer:24

400

Find the median after multiplying each number by 4

52,34,52,28,19,12,18,20,52

12,18,19,20,28,34,52,52,52

Answer:112

500

Find the median after multiplying by 3. Round one decimal place.

4,6,2,48,48,24,24,24,18,2,5,7,5

2,2,4,5,5,7,18,24,24,24,48,48 

Answer: 37.5

Mode

100

7,3,3,4,5,7,7

Mode:7

200

Find the mode after adding 5 to each number.

28,28,16,14,14,12,10

Mode:33,19

300

Find the mode after multiplying each number by 5

45,62,34,43,52,12,1,1,1

Mode:5

400

Find the mode after adding (-5) to each number. 

12,43,21,12,12,21,5,8,8,6

Mode: 7

500

Find the mode after multiplying 3 by each number

12,12,4,6,7,19,19,24,8

Mode: 36, 57

Standard Deviation

100

Find the Standard Deviation. Round to one decimal place.

45,62,78,63,63,28,32,32

18.8

200

Find the Standard Deviation after adding 5 to each number. Round to one decimal place

14,12,18,14,14,25,22

4.9

300

Find the Standard Deviation after multiplying by 5. Round the answer to one decimal place.

14,25,6,13,13,8,24,13,8

33.5

400

Find the Standard Deviation after multiplying each number by 3. Round the answer to one decimal place.

52,28,36,36,47,15,28

37.5

500

Find the Standard Deviation after multiplying each number by 12.

63, 63, 62, 63, 62, 61, 64, 65, 62, 63, 61, 61, 64, 62, 61

14.4

Range

100

Find the range of the following data set:

13, 42, 27, 6, 51

45

200

Find the range of the following data set after adding 4 to each number.

124, 93, 108, 174, 151

81

300

To calculate the range what do you need to do?

Calculate the difference between the highest number and the smallest number in the dataset

400

Calculate the range of the following dataset after multiplying each number by 3

123, 107, 134, 128, 196, 173

267

500

Calculate the range of the following data after adding 17 to all numbers.

12, 15, 17, 11, 13, 54, 94, 2, 13, 16, 16, 15, 17, 19, 15, 12, 21, 84, 91, 93, 68, 87, 85, 62, 24, 15, 15, 19, 2, 5, 7, 9, 91, 15, 17, 16

92