Measures of Central Tendency and Data Handling

This video tutorial covers data handling, focusing on measures of central tendency and measures of spread. It explains how to calculate the mean, mode, and median, and discusses the range, five number summary, and interquartile range. The tutorial also demonstrates how to draw a box and whisker diagram using the five number summary.

What is the primary goal of data handling?

• To summarize data

• To collect data

• To store data

• To visualize data

Which of the following is NOT a measure of central tendency?

• Mean

• Mode

• Median

• Range

How is the mean of a data set calculated?

• By identifying the most frequent value

• By finding the middle value

• By subtracting the smallest value from the largest value

• By dividing the sum of values by the number of values

What is the mode of a data set?

• The difference between the highest and lowest values

• The average of all values

• The most frequently occurring value

• The middle value

If a data set has two numbers that repeat equally, what is the mode?

• No mode

• The first number

• The second number

• The average of the two numbers

How is the median of a data set determined?

• By finding the middle value

• By identifying the most frequent value

• By subtracting the smallest value from the largest value

• By finding the average of all values

What is the range of a data set?

• The most frequently occurring value

• The difference between the highest and lowest values

• The middle value

• The average of all values

Which of the following is part of the five-number summary?

• Quartile 1

• Standard deviation

• Mean

• Mode

How is the interquartile range calculated?

• By identifying the most frequent value

• By subtracting Quartile 1 from Quartile 3

• By finding the average of all values

• By subtracting the smallest value from the largest value

What is a box and whisker plot used for?

• To show the distribution of a data set

• To identify the mode of a data set

• To calculate the range of a data set

• To display the mean of a data set