Data Analysis: Quiz 1

A student tracked the number of hours he studied for five days: 3, 5, 7, 5, and 10 hours. What is the mean number of study hours?

• 5

• 6

• 6.5

• 7

A college student recorded her daily allowance (in pesos) for one week: 100, 120, 100, 150, and 130. Which value represents the mode?

• 100

• 120

• 130

• 150

The travel time (in minutes) of five students going to school are: 20, 25, 30, 35, and 40. What is the median travel time?

• 25

• 30

• 35

• 40

A student obtained the following quiz scores: 70, 75, 80, 85, and x. If the mean score is 80, what is the value of x?

• 85

• 90

• 95

• 100

A household recorded weekly expenses (in pesos): 2000, 2500, 3000, 3500, and 4000. What is the median expense?

• 2500

• 3000

• 3200

• 3500

The heights (in cm) of five students are 150, 152, 155, 160, and 180. Which measure of central tendency best represents the typical height?

• Mean

• Median

• Mode

• Range

A company's employee salaries (in pesos) are 12,000; 15,000; 18,000; 20,000; and 100,000. Which measure best describes the central tendency?

• Mean

• Median

• Mode

• Range

A teacher recorded the number of absences of five students: 0, 1, 2, 2, and 3. What is the mean number of absences?

• 1.4

• 1.6

• 1.8

• 2

The test scores of five students are 60, 70, 80, 90, and 100. What is the first quartile (Q1)?

• 60

• 65

• 70

• 75

Using the same data (60, 70, 80, 90, 100), what is the third quartile (Q3)?

• 85

• 90

• 95

• 100