Exploring Box and Whisker Plots in Statistics

What are the three measures of central tendency discussed in the video?

• Mean, Median, Mode

• Range, Median, Mode

• Mean, Median, Variance

• Mean, Mode, Standard Deviation

What does the median represent in a data set?

• The most frequent number

• The middle value

• The average of all numbers

• The difference between highest and lowest values

How is the range of a data set calculated?

• Average of the highest and lowest values

• Sum of all values divided by the number of values

• Maximum value minus minimum value

• Maximum value plus minimum value

What is the median of the data set used in the video?

• 39

• 47

• 61

• 22

What is the lower quartile of the data set?

• 44

• 45

• 47

• 43

What value represents the upper quartile in the data set?

• 47

• 49

• 51.5

• 50

How is the interquartile range calculated?

• Upper quartile plus lower quartile

• Median minus lower quartile

• Median plus upper quartile

• Upper quartile minus lower quartile

What does the box in a box and whiskers plot represent?

• The range of the data

• The total spread of the data

• The interquartile range

• The middle 50% of the data

According to the box and whiskers plot, what can be inferred about the variation in the upper half of the data?

• It cannot be determined

• It is equal to the lower half

• It is greater than the lower half

• It is less than the lower half

If the speed limit is 45 mph, what percentage of drivers were exceeding this limit according to the data?

• Less than 25%

• About 50%

• More than 50%

• Cannot be determined