# Quiz: Introduction To Statistics 101

11 Questions | Total Attempts: 24420  Settings  Statistics is what makes us able to collect, organize, display, interpret, analyze, and present data. This quick quiz features eleven basic questions of the topic. Check your basic knowledge in simple statistics concepts. Let's jump right in.

• 1.
You are conducting a survey of the people of the United Kingdom to find out how popular the racket sports are. You randomly choose people to call and make 1,000 phone calls to people scattered across the country. In this study, what is the statistics term for THE PEOPLE IN THE U.K., and what is the statistics term for THE PEOPLE YOU CALLED?
• A.

Both the people of the U.K. and the people you called are POPULATIONS.

• B.

The people of the U.K. are the POPULATION, and the people you called are the SAMPLE.

• C.

The people of the U.K. are the SAMPLE, and the people you called are the POPULATION.

• D.

Both the people of the U.K. and the people you called are SAMPLES.

• 2.
Age is classified as:
• A.

Nominal data

• B.

Ordinal data

• C.

Interval data

• D.

Ratio data

• 3.
You are interested in how stress affects heart rate in humans. Your dependent variable would be the _____.
• A.

Interest

• B.

Heart rate

• C.

Humans

• D.

Stress

• 4.
Gender is categorized as:
• A.

Nominal

• B.

Ordinal

• C.

Interval

• D.

Ratio

• 5.
You are conducting a study to see whether a new experimental medication will cause bald men to grow hair. You divide your patients into two groups. To one group, you give the medication. To the other group, you give a placebo. In this study, the correct terms for the taking of the drug and the growth of hair are the following.
• A.

Both the medication and the hair growth are dependent variables.

• B.

Both the medication and the hair growth are independent variables.

• C.

The medication is the dependent variable, and the hair growth is the independent variable.

• D.

The medication is the independent variable, and the hair growth is the dependent variable.

• 6.
Which of the following definitions is the definition of the MODE?
• A.

The MODE is the value that has the highest frequency.

• B.

The MODE is the average calculated by adding up all the values and dividing by the number of entries.

• C.

The MODE is the largest value.

• D.

The MODE is the value that half of the entries are below and half of the entries are above.

• 7.
Which of the following definitions is the definition of the MEAN?
• A.

The MEAN is the largest value.

• B.

The MEAN is the value that half of the entries are below and half of the entries are above.

• C.

The MEAN is the value that has the highest frequency.

• D.

The MEAN is the average calculated by adding up all the values and dividing by the number of entries.

• 8.
Which of the following definitions is the definition of the MEDIAN?
• A.

The MEDIAN is the value that half of the entries are below and half of the entries are above.

• B.

The MEDIAN is the value that has the highest frequency.

• C.

The MEDIAN is the largest value.

• D.

The MEDIAN is the average calculated by adding up all the values and dividing by the number of entries.

• 9.
What is the median of the following set of numbers? {12,8,13,4,7,6,3,3,15}
• A.

12

• B.

8

• C.

7

• D.

7.5

• 10.
What are the mode and the mean for the following set of numbers? {4, 9, 8, 2, 16, 4, 4, 8 ,9, 6}
• A.

Mean = 7, mode =8

• B.

Mean = 7, mode =4

• C.

Mean = 6, mode =8

• D.

Mean = 8, mode =9

• 11.
Statistics are useless since you can design an experiment to prove anything you want to prove statistically.
• A.

True

• B.

False

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