MEASURES OF CENTRAL TENDENCY - Algebra 2.7

The video tutorial by Tyler from Tarver Academy covers measures of central tendency, including mean, median, and mode. It explains how to calculate each measure with examples. The video also discusses the concept of range and introduces stem and leaf plots as a method of data visualization. Each section provides a clear understanding of these statistical concepts, making it easier for students to grasp the material.

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

• Median

• Mean

• Range

• Mode

How do you calculate the mean of a set of numbers?

• Find the middle number

• Add all numbers and divide by the number of numbers

• Subtract the smallest number from the largest

• Identify the most frequent number

If you have the numbers 3, 8, 12, 14, and 16, what is the median?

• 12

• 16

• 8

• 14

What is the median of the numbers 2, 4, 5, 6, 8, and 9?

• 5

• 6

• 5.5

• 6.5

In a data set, which measure identifies the most frequently occurring number?

• Mode

• Range

• Median

• Mean

What is the mode of the numbers 2, 7, 4, 5, 2, 7, 2, and 4?

• 7

• 5

• 4

• 2

How is the range of a data set calculated?

• By finding the average of the numbers

• By finding the middle number

• By subtracting the smallest number from the largest

• By identifying the most frequent number

What is the range of the numbers 1, 2, 3, 5, 8, 12, and 16?

• 13

• 14

• 16

• 15

In a stem-and-leaf plot, what does the 'stem' represent?

• The first digit or digits of each number

• The last digit of each number

• The total number of data points

• The average of the data set

Which of the following is true about a stem-and-leaf plot?

• It is used to find the range

• It is a type of bar graph

• It is used to calculate the mean

• It shows the frequency of data points