Basic Statistics Interquartile

the interquartile range is ___

• max minus upper quartile

• upper quartile minus lower quartile

• max minus min

• lower quartile minus min

the lower quartile is the ___

• median

• median of the lower half of the data

• median of the upper half of the data

• mean

A branch of Mathematics which deals with the collection, organization, and analysis of data.

• Measurement

• Geometry

• Quantitative Study

• Statistics

What is the significance of the interquartile range in statistics?

• The interquartile range measures the spread and variability of the middle 50% of the data.

• The interquartile range measures the spread and variability of the upper 75% of the data.

• The interquartile range measures the spread and variability of the lower 25% of the data.

• The interquartile range measures the spread and variability of the entire dataset.

How would you determine the appropriate measure of spread for the age of bullriders?

• hist(age$bullriders)

  to view the shape of the distribution.

• hist(bullriders$age)

  to view the shape of the distribution.

• IQR(age$bullriders)

  to calculate the spread of the distribution.

• IQR(bullriders$age)

  to calculate the spread of the distribution.

Which plot has a larger interquartile range?

• Top plot

• Bottom plot

Which box and whisker plot has the smallest lower quartile (Q1)?

• Top plot

• Bottom plot

Which box and whisker plot has the highest median?

• Top plot

• Bottom plot

What is the maximum value?

• 58

• 66

• 64

• 60