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What is the primary purpose of calculating the mean in a data set?

• To find the most frequently occurring value

• To determine the middle value in a data set

• To calculate the average value of a data set

• To identify the range of the data set

Which of the following is the correct formula for calculating the mean?

• Sum of all values divided by the number of values

• Difference between the highest and lowest values

• Product of all values divided by the number of values

• Sum of all values divided by two

If a data set consists of the numbers 2, 4, 6, 8, and 10, what is the mean?

• 5

• 6

• 7

• 8

Which of the following is a common mistake when calculating the mean?

• Using the median instead of the mean

• Multiplying the values instead of adding

• Adding the values incorrectly

• Forgetting to divide by the number of values

Why is it important to avoid using the mean when there are outliers in the data?

• Outliers are always included in the mean calculation

• Outliers have no effect on the mean

• Outliers can skew the mean significantly

• Outliers make the mean more accurate