Measures of Tendency and Stem and Leaf Plot

Find the median:
3, 5, 7, 4, 3, 1

• 3 and 4

• There isn't one

• 3.5

• 3

What is the median?

• The middle value among some scores of a variable

• The average score or value

• The most frequent response or value for a variable

• The value between the minimum and maximum values of a variable

What is the mode?

• The value between the minimum and maximum values of a variable

• The average score or value

• The middle value among some scores of a variable

• The most frequent response or value for a variable

Which of the following is a measure of central tendency?

• Mean

• Standard Deviation

• Range

• Variance

What does a stem-and-leaf plot represent in data analysis?

• The ranking of data

• The distribution of data

• The central tendency of data

• The skewness and kurtosis of data

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Add the two numbers in the middle & then divide by two.

• They are both the median

• None of the above

Given the following set of data:

74, 70, 75, 90, 85, 86, 81, 78, 92, 86

Find Q1.

Given the following set of data:

19, 20, 17, 18, 19, 16, 16, 14

Find Q3.

The weights (in pounds) of ten pumpkins are 22, 21, 24, 24, 5, 24, 5, 23, 24, and 24.

What is the mean of the pumpkin weights?

The weights (in pounds) of ten pumpkins are 22, 21, 24, 24, 5, 24, 5, 23, 24, and 24.

What is the mode of the pumpkin weights?