Chapter 3/4 Review

The familiar arithmetic average: the sum of the observations divided by
the number of observations.

• Median

• Mean

• Sample mean

• None of the Above

What is the equation for sample mean? Try your best!!

A statistic obtained by calculating the arithmetic average of the values of a variable in a sample

• Regular Mean

• Sample Mean

• Sample Median

• Probability

What is the mean of the following set of numbers: 4, 8, 12, 16, 20?

• 10

• 12

• 14

• 16

Denoted by μ, is the average of all x values in the entire population.

• Regular Mean

• Sample Mean

• Median

• Population Mean

What is the definition of the mean in statistics?

• The middle value of a data set

• The sum of all data values divided by the number of data values

• The difference between the third quartile and the first quartile

• The square root of the variance

Is the middle value in the list, and it divides the list into two equal parts

• Mean

• Mode

• Sample Median

• Median

Sample median is obtained by first ordering the n observations from smallest to largest.

• True

• Fall

What do you remember about sample proportion of successes?

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How do you find range in data?