Averages and Grouped Data

Find the median.

• 27.43

• 28.43

• 29.43

• 30.43

For this grouped data, which is the median class?

• 20-<30

• 30-<40

• 40-<50

• 0-<10

What is the missing number in the cumulative frequency column?

• 19

• 9

• 15

• 22

What is the average of the following data?

• 3

• 3.5

• 4

• 4.5

What is the median of the following data?

• 1

• 2

• 2.5

• 3

Which of the following is calculated using all the available data?

• Arithmetic Mean

• Range

• Median

• Mode

If the average of certain data is 46.3 and a new data point with the value of 30 is added to the data, then the new average...?

• Will be the same

• Will be higher

• Will be lower

• Will be 30

Which of the following data has the highest average?

• 1, 2, 1, 3

• 1, 3, 4, 2

• 3, 4, 5, 4

• 1, 5, 1, 5

Which of the following is a dispersion measurement?

• Mode

• Arithmetic Mean

• Median

• Standard Deviation

Which are the methods to estimate the mode when having grouped data?

• Midpoint

  Lever

• Lever

  Pearson

• Midpoint

  Lever

  Cauchy

• Midpoint

  Lever

  Pearson