Frequency Tables and Statistics

How many students have more than 1,000 songs on their MP3 player?

• 5

• 16

• 10

• 4

Given both table above are marks obtained by 20 students in Math out of 25. What are different between the tables?

• A: Cumulative frequency

  B: Ungrouped frequency distribution table

• A: Ungrouped frequency distribution table

  B: Grouped frequency distribution table

• A: Ungrouped frequency distribution table

  B: Cumulative frequency

• A: Grouped frequency distribution table

  B: Cumulative frequency

What is class width of the following frequency distribution?

• 3

• 4

• 5

• 19

Use the frequency histogram to determine the class width

• 7

• 8

• 9

• 10

Which interval has 400 employees?

• 33-43

• 0-10

• 77-87

• 66-76

If x be the mid-point and 1 be the upper class limit of a class in a continuous frequency distribution. What is the lower limit of the class?

• x – 1

• 3x + 8

• 2x + 2

• 2x – 1

Class mark and the class size of the class interval are 25 and 10 respectively,then the class interval is

• 20-30

• 30-40

• 40-50

• 50-60

How many total people took the survey?

• 50

• 150

• 100

• 200

In the class interval 10-20, 20 - 30, the number 20 is included in _____

• 10 - 20

• 20 - 30

• Both the intervals

• None of these intervals

You conduct a survey at school and ask students whether they take an art class or a foreign language.

If a student from the survey is selected at random, what is the probability that they take an art class?