HW 1 (Unit 7): Data Distributions

Front

What is the range of a set of numbers?

Back

The range is the difference between the largest and smallest numbers in a set.

Front

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

Back

Add all the numbers together and divide by the total count of numbers.

Front

What is the mode in a set of numbers?

Back

The mode is the number that appears most frequently in a set.

Front

What is the median of a set of numbers?

Back

The median is the middle number when the numbers are arranged in order.

Front

If Roger's scores are: 155, 165, 138, 172, 127, 193, 142, what is the range?

Back

66 (193 - 127 = 66).

Front

In the set: 12, 10, 10, 10, 13, 12, 11, 13, 10, what is the mode?

Back

10 (it appears most frequently).

Front

What does it mean if a data set has no mode?

Back

It means no number appears more than once.

Front

How do you find the median in an even set of numbers?

Back

Average the two middle numbers after arranging the set in order.

Front

What is the first step in finding the mean?

Back

Add all the numbers together.

Front

What is the significance of the median in a data set?

Back

It represents the middle value, providing a measure of central tendency that is not affected by outliers.