Frequency of Data

It is the number of times of a certain value or class of values occurs.

• a. Cumulative Frequency Table

• b. Frequency

• c. Class Mark

It shows the data arranged into different classes and the number of cases that fall into each class.

• a. Data

• b. Frequency Distribution Table

• c. Statistics

This is the sum of frequencies of the class and all the classes below it. It was calculated by adding the frequency of each class lower than the corresponding class interval or category.

• a. Cumulative Frequency Table

• b. Frequency

• c. Class Mark

Which calculation is correct to find the number of degrees representing comedy in a pie chart showing the following info?

What is the frequency for the diameters that range from 3.1 to 4.0?

• 8

• 1

• 7

• 9

What is the missing value for a. in the frequency column?

• 75

• 80

• 72

• 84

Raphael surveyed his coworkers to find out how many hours they spend on the Internet each week.
The results are shown below.

14, 22, 10, 6, 9, 3, 13, 7, 12, 2, 26, 11, 13, 25

What is the frequency for each interval?

• 2

• 16-23

• 7

• 8-15

• 4

• 0-7

• 1

• 24-31

A florist recorded the number and cost of flower bouquets that were sold daily and recorded the data below. What is the frequency of a bouquet that cost at least $40?

• 2

• 15

• 22

• 37

Why is this frequency distribution incorrect?

• The fourth class width is different from the others

• There is a zero.

• Classes should overlapped.

A diver wants to make a pie chart of his trip. Which one of these is a correct method for finding F?