Measures Of Variation

Mean

100

Find the mean of the following numbers
37,24,55,59

43.75

200

Find the mean.

12,58,22,38,40 

34

300

Find the mean.

123,99,85,114,108

105.8

400

Find the mean.

1,16,5,7,12

8.2

500

What is mean

The average of the numbers.

Quartiles

100

Which of these values would fall into the lower quartile.

45,78,23,90,14,65,54

14, 23, 45

200

Which of the following falls in the upper quartile.

4,42,12,26,98,50,9,22,37

37,42,50,98

300

What is the IQR?

65,45,88,32,79,22,93

57

400

What is a IQR?

Interquartile Range IQR is the difference between the upper quartile and lower quartile

500

What is a quartile (Q1, Q3)?

The values that divide a list of numbers into quarters.

Q1 indicates that 25% of the values are less thanQ1 and 75% of the values are more than Q1

Q3 indicates that 75% of the values are less thanQ3 and 25% of the values are more than Q3

Range

100

Find the range 

56,87,130,75,92

74

200

What is the range

5,25,12,68,40,29

63

300

What is range

500,268,349,194,448

306

400

What is range

4.5, 9.7, 1.2, 12.54, 6.6

11.34

500

What is range

The difference between the largest value and smallest value

Mode

100

What is the mode

The number that occurs most often

200

Find the mode

13,18,16,18,19,30,22,11,11,18,20

18

300

Find the mode.

2,45,5.8,2,6,7,2,7,13,25

2

400

Find the mode.

4,9,2,6,5,7,6,9,3,4,1,6,5,7,,8,3

6

500

Find the mode

4.6,1.5,5.45,6,4.6,9.3.1.2,5.45

5.45 and 4.6

Random

100

Solve for y.
y+78=236

158

200

Convert 24% to a fraction

6/25

300

Convert 52/78 into a decimal

.6666667

400

If x=3 and z=13. Then what does y equal

5x-y+8z= -25

y= 144

500

Convert 97.43% into a fraction

9743/10000