Statistics 1

To find the mean of a data set, we add up all of the numbers in the data set and divide by...

• 2

• the minimum value

• the maximum value

• the number of elements in the data set

What is the mode of a data set?

• the balance point

• the middle number

• the number(s) that appears the most often

• the difference between the maximum and minimum values

A data set can have more than one mode, or no mode at all.

• True

• False

Evan scored the following on his Quarter 4 tests: 90,100, 94, 88 and 97. What is his mean (average) test score? Round to the nearest whole number.

• 93

• 94

• 95

• 96

What must be the FIRST step when finding the median of a set of data?

• Mark off the lowest number.

• Mark off the highest number.

• Arrange the numbers in order from least to greatest.

• Find the middle number.

Given the data set: 10, 8, 16, 13, 15

Gavin says the median is 16.

Harper says the median is 13.

Which student is correct?

• Gavin

• Harper

The mode score on last year's Algebra 1 Regents was 97! Which of these interpretations must be correct?

• More students scored a 97 than any other score.

• 97 was the highest score on the test.

• No student scored below a 97.

• A score of 95 was slightly below average.

What is the range of a data set?

• the average

• the middle number

• maximum value - minimum value

• Q3 - Q1

Determine the range: 5, 15, 10, 20, 15, 10, 15

• 5

• 10

• 15

• 20

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most