4.2 Practice

The number of passengers on a bus for 7 consecutive days is shown below.

35, 35, 28, 30, 35, 32, 34

Which best shows the number of passengers most often on the bus?

• Mean

• Median

• Mode

• Range

A business woman calculates that the median cost of her 5 business trips last month was $600. Which of these statements is correct?

• She spent a total of $3,000 on business trips last month.

• She spent a total of $600 on most of the business trips last month.

• She spent $600 or more on half of the business trips last month.

• She spent $600 more on her most expensive business trip than she did on her least expensive trip.

Tina collected data on the numbers of puppies in several litters. The range of the data she collected is 5. Which statement must be true?

• The average number of puppies in the litters is 5.

• The most common number of puppies in a litter is 5.

• The difference between the largest and smallest number of puppies in the litter is 5.

• Half of the litters have 5 puppies or fewer and half of the litters have 5 puppies or more.

In this set of data:

5, 3, 9, 7, 5, 19, 4

5 represents the ______.

• Mean

• Median

• Mode

• Median & Mode

Fred has the following test scores at the end of the semester: 71, 74, 81, 88, 92, & 93. Which measure of central tendency should he report to his teacher in order to receive the highest possible grade?

• Mean

• Median

• Mode

• Range

A set of data contains 10 negative numbers and 4 positive numbers. Which of these statements must be true?

• The mean is a negative number.

• The median is a negative number.

• The mode is a negative number.

• The range is a negative number.

Gia collected data on the weights, in ounces, of five newborn puppies. The weights are shown in the list below:

5, 6, 7, 11, 11

Which statement is true?

• The median is greater than the mean, and the range is 6.

• The mean is greater than the median, and the range is 6.

• The median is greater than the mean, and the range is 11.

• The mean is greater than the median, and the range is 11.

Tyrone received the following quiz grades: 77, 85, 50, 90, 77, 88, and 93. His teacher told him to calculate the measure of central tendency that would result in the highest grade. What should Tyrone calculate?

• Mode

• Mean

• Range

• Median

John is comparing his quiz scores from two weeks in math class.

Week 1: 78, 81, 86, 86, 89

Week 2: 79, 85, 86, 88, 92

Which summary statistic is the same for both weeks?

• Mean

• Median

• Mode

• Range

A small business owner must hire seasonal workers as the need arises. The following list shows the number of employees hired monthly for a 5 month period.

4, 13, 5, 6, 9

What is the standard deviation for this data? (Round to the nearest tenth)

• 3.3

• 7.4

• 10.8

• 13.5