Analyzing Frequency Tables: Mean, Median, Mode, and More

The video tutorial explains how to use frequency tables to calculate statistical measures such as mode, median, mean, range, and interquartile range. It provides step-by-step instructions and examples, emphasizing the importance of understanding each concept. The tutorial concludes with a practice problem to reinforce learning.

Which score appeared most frequently in the quiz?

• 7

• 8

• 9

• 10

What is the median score of the data set?

• 9

• 8

• 7

• 6

How many total scores are recorded in the frequency table?

• 17

• 16

• 15

• 18

What is the correct method to find the median from a frequency table?

• Subtract the highest score from the lowest

• Multiply scores by their frequencies

• List all scores and find the middle

• Add all scores and divide by total

What is the mean score rounded to one decimal place?

• 7.1

• 7.3

• 7.4

• 7.2

How do you calculate the mean from a frequency table?

• None of the above

• Multiply each score by its frequency and divide by total scores

• List all scores and find the middle value

• Add all scores and divide by the number of scores

What is the range of the scores?

• 7

• 6

• 5

• 8

What is the interquartile range of the scores?

• 4

• 1

• 2

• 3

Which score is the lower quartile located at?

• 8

• 7

• 9

• 6

What statistical measure would you use to describe the spread of ages in the new problem?

• Median

• Mean

• Mode

• Interquartile Range