1.6 Finding Mean

Front

What is the mean of a set of numbers?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the total count of numbers.

Front

How do you calculate the mean?

Back

To calculate the mean, sum all the values in the dataset and then divide by the number of values.

Front

If the mean of five numbers is 8.2 and four of the numbers are 8, 10, 12, and 10, what is the fifth number?

Back

1

Front

What is the mean of the numbers 4, 9, 7, 10, and 5?

Back

7

Front

What is the average of Jeff's grades: 100, 96, 96, and 100?

Back

98

Front

What is the mean of the numbers 20, 30, 24, and 32?

Back

26.5

Front

What does it mean if the mean is higher than the median in a dataset?

Back

It indicates that the dataset may be skewed to the right, with some higher values pulling the mean up.

Front

What does it mean if the mean is lower than the median in a dataset?

Back

It indicates that the dataset may be skewed to the left, with some lower values pulling the mean down.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values)

Front

If you add a new number to a dataset, how does it affect the mean?

Back

The mean will change depending on whether the new number is higher or lower than the current mean.