5 SAT questions - mean, median, and range

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 count of numbers.

Front

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

Back

To find the median, arrange the numbers in ascending order and identify the middle number. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the range of a set of numbers?

Back

The range is the difference between the highest and lowest values in a set of numbers.

Front

If the numbers are 3, 7, 5, 9, what is the mean?

Back

The mean is (3 + 7 + 5 + 9) / 4 = 6.

Front

If the numbers are 2, 4, 6, 8, what is the median?

Back

The median is (4 + 6) / 2 = 5.

Front

What happens to the mean if you add a new number to the set?

Back

The mean will change depending on the value of the new number relative to the current mean.

Front

How does the median change if a new number is added?

Back

The median may change if the new number affects the order of the dataset, especially if it is less than or greater than the current median.

Front

What is the formula for calculating the mean?

Back

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

Front

If the highest number in a set is 15 and the lowest is 3, what is the range?

Back

The range is 15 - 3 = 12.

Front

In a dataset of 1, 2, 3, 4, 5, what is the median?

Back

The median is 3, as it is the middle number in the ordered set.