Back to Statistics

1.3 Frequency, Frequency Tables, and Levels of Measurement

Relative and cumulative frequency tables built from raw counts, plus nominal, ordinal, interval and ratio scales and the arithmetic each one permits.

Statistics, 1.3 Frequency, Frequency Tables, and Levels of Measurement

Status
FlagsLoading your progress…

14 exercises

1.3 Exercise 1

From the table, find the percentage of heights that are less than 65.95 inches.

2.5

1.3 Exercise 2

the table shows the amount, in inches, of annual rainfall in a sample of towns.

From the table, find the percentage of rainfall that is less than 9.01 inches.

2.5

1.3 Exercise 3

From the table, find the percentage of heights that fall between 61.95 and 65.95 inches.

2.5

1.3 Exercise 4

From the table, find the percentage of rainfall that is between 6.99 and 13.05 inches.

2.5

1.3 Exercise 5

Use the heights of the 100 male semiprofessional soccer players in the table. Fill in the blanks and check your answers.

  1. The percentage of heights that are from 67.95–71.95 inches is ________.
  2. The percentage of heights that are from 67.95–73.95 inches is ________.
  3. The percentage of heights that are more than 65.95 inches is ________.
  4. The number of players in the sample who are between 61.95 an…
2.5

1.3 Exercise 6

From the table, find the number of towns that have rainfall between 2.95 and 9.01 inches.

2.5

1.3 Exercise 7

  1. Is the table correct? If it is not correct, what is wrong?
  2. True or False: Three percent of the people surveyed commute three miles. If the statement is not correct, what should it be? If the table is incorrect, make the corrections.
  3. What fraction of the people surveyed commute five or seven miles?
  4. What fraction of the people surveyed commute 12 miles or more? Less than 12 miles? Between five and 1…
2.5

1.3 Exercise 8

the table represents the amount, in inches, of annual rainfall in a sample of towns. What fraction of towns surveyed get between 11.03 and 13.05 inches of rainfall each year?

2.5

1.3 Exercise 9

Answer the following questions:

  1. What is the frequency of deaths measured from 2006 through 2009?
  2. What percentage of deaths occurred after 2009?
  3. What is the relative frequency of deaths that occurred in 2003 or earlier?
  4. What is the percentage of deaths that occurred in 2004?
  5. What kind of data are the numbers of deaths?
  6. The Richter scale is used to quantify the energy produced by an earthquake. Exam…
2.5

1.3 Exercise 10

the table contains the total number of fatal motor vehicle traffic crashes in the United States for the period from 1994–2011.

Answer the following questions:

  1. What is the frequency of deaths measured from 2000 through 2004?
  2. What percentage of deaths occurred after 2006?
  3. What is the relative frequency of deaths that occurred in 2000 or before?
  4. What is the percentage of deaths that occurred in 2011?
  5. …
2.5

1.3 Exercise 11

What type of measure scale is being used? Nominal, ordinal, interval or ratio.

  1. High school soccer players classified by their athletic ability: superior, average, above average
  2. Baking temperatures for various main dishes: 350, 400, 325, 250, 300
  3. The colors of crayons in a 24-crayon box
  4. Social security numbers
  5. Incomes measured in dollars
  6. A satisfaction survey of a social website by number: 1 = ve…
2.5

Flossing Frequency for Adults with Gum Disease

Sixty adults with gum disease were asked the number of times per week they used to floss before their diagnosis. The (incomplete) results are shown in the table.

  1. Fill in the blanks in the table.
  2. What percent of adults flossed six times per week?
  3. What percent flossed at most three times per week?
2.5

1.3 Exercise 15

How much time does it take to travel to work? the table shows the mean commute time by state for workers at least 16 years old who are not working at home. Find the mean travel time, and round off the answer properly.

2.5

1.3 Exercise 17

What is the relative frequency of direct hits that were category 4 hurricanes?

  1. .0768
  2. .0659
  3. .2601
  4. not enough information to calculate
2.5

Adapted from Statistics © 2022 Rice University. Licensed under CC BY 4.0. Source: Statistics. Imported at revision 7dea80a.