Measures of Dispersion for Grouped Data

Calculate the size of class interval of the data.

• 5

• 10

• 15

• 20

Which of the following shows the smaller dispersion of the distribution of data?

• 
• 
• 
• 

Calculate Q - P.

• 20

• 25

• 30

• 35

Calculate the interquartile range.

• 0.5 m

• 0.7 m

• 1.0 m

• 1.2 m

• 30.36

• 5.430

• 5.510

• 3.110

Calculate the interquartile range for the ogive.

• 29

• 14

• 10

• 4

If the mode class is 20 - 29, determine a possible value of y.

• 5

• 6

• 7

• 8

Calculate the mass mean, in kg, of a child.

• 24.5

• 27.0

• 29.5

• 32.0

Determine the value of x in the cumulative frequency table below.

• 10

• 11

• 12

• 13

Calculate the standard deviation for the following data.

• 2.928

• 4.848

• 5.148

• 6.227