# Statistics MCQ Commerce

50 Questions 30 Mins

Statistics is a branch of applied mathematics concerned with the collection, description, analysis, and inference of conclusions from numerical data. The mathematical theories of statistics make extensive use of differential and integral calculus, probability theory, and linear algebra. The ability to make appropriate conclusions about large groups and general occurrences from the actions and other visible traits of small samples is of particular importance to statisticians. These tiny samples represent a subset of a broader group or a limited number of similar occurrences.

Describing the characteristics of samples and populations using descriptive statistics and inferential statistics, respectively, are two of the most important fields of statistics.

#### Salient Features of Statistics

• Statistics is the study and data manipulation, which includes methods for data collection, examination, analysis, and conclusion.
• Descriptive and inferential statistics are the two main types of statistics.
• Statistics can help you make better business and investment choices.

#### Uses of Statistics

Statistics are commonly employed in a variety of applications and occupations. Statistics are created whenever data is collected and examined. This can include everything from government organizations to academic research to financial analysis.

Economists gather and analyze a wide range of data, housing starts, including consumer spending, GDP growth, and inflation. Analysts and investors in finance gather information on businesses, industries, sentiment, and market price and volume data. The use of inferential statistics in various domains is referred to as econometrics. Statistical inference is used in a number of major financial models, including CAPM, Modern Portfolio Theory (MPT), and the Black-Scholes options pricing model.

Following are some of the multiple choice questions on the Statistics with answers that will help the students in developing their knowledge.

## Statistics MCQ

### 1. What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most

• 84
• 90
• 85
• 88

### 3. The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?

• 94 was the highest score on the test.
• More students received a 94 than any other score
• No student scored below a 94
• A score of 91 was slightly below average.

### 4. To find the average or mean of a set of numbers, add up all the items and divide by...

• 2
• The minimum
• The maximum
• The number of items

### 5. What is the MODE of a data set?

• The middle value
• The number that occurs most frequently
• The average
• The difference between the max and min values

### 6. Find the median, mode and range: 3, 5, 7, 9, 11, 8, 3

• median:7 mode:9 range:8
• median:6 mode:3 range:7
• median:7 mode:3 range:8
• None of these

• 8
• 9
• 13
• 21

### 8. Which of the following is a population?

• 7th grade girls at Schroeder
• 7th grade boys at Schroeder
• Teachers at Schroeder
• All students at Schroeder

• True
• False

### 10. What is the RANGE of a data set?

• The middle value
• The number that occurs most frequently
• The average
• The difference between the max and min values

### 11. What is the MEDIAN of a data set?

• The middle value
• The number that occurs most frequently
• The average
• The difference between the max and min values

### 12. Which of the following is an example of a statistical question?

• What color shirt are you wearing?
• How many dogs do you have?
• What are the favorite ice cream flavors of CMS 6th graders?
• Is it a nice day outside?

### 13. What makes a question statistical?

• Population
• Measurability
• Variability
• All of the above

### 14. What is the MEAN of a data set?

• The middle value
• The number that occurs most frequently
• The average
• The difference between the max and min values

### 15. A sample should be

• representative of  only middle school students only
• a very large group
• representative of the population
• representative of people who volunteer

### 16. Is the following question statistical or non statistical?How many siblings does each Longview student have?

• Statistical
• Non Statistical

• Biased
• Unbiased

### 18. To find the mean of a set of numbers, add up all the items and divide by...

• 2
• The least number
• The maximum or biggest number
• The number of items in the data set

• 5
• 4
• 6
• 4.5

• 10
• 7
• 8
• 5

• 6
• 4
• 5
• 7

• 36
• 25
• 39
• 26.5

### 23. What does the MAD tell us about a data set?

• The average number
• The measure of variation
• The number that occurs most often
• The middle number

### 24. How do you find the range of a set of data?

• Find the middle number
• The number that appears the most
• Add all the numbers up and divide them by the total amount of numbers
• The highest value minus the lowest value

• 24
• 3
• 6
• 8

• True
• False

### 27. Which answer shows numerical data?

• Favorite animal
• Hours of sleep last night
• Hair color
• Elementary school you attended

### 28. Which event is not a dependent event?

• Picking 2 students be line leader and door holder from a group of 20 students
• Picking 2 marbles from a bag without replacing the first marble
• Picking 2 blue crayons from a box
• Picking an earring, replacing it, then picking a 2nd earring

### 29. Temperature and number of people wearing jackets

• Positive Correlation
• Negative Correlation
• No Correlation
• None of these

### 30. Which could be a sample?

• All students at UND
• Students in a sorority at UND
• All professors at UND
• None of these

### 31. What does it mean for a graph of data to be SYMMETRICAL?

• Most of the data is grouped to the left side
• Most of the data is grouped to the right side
• Most of the data is in the middle (draw a line down the middle and both sides look the same)
• None of these

### 32. What does it mean for a graph of data to be SKEWED LEFT?

• Most of the data is grouped to the left side
• Most of the data is grouped to the right side
• Most of the data is in the middle (draw a line down the middle and both sides look the same)
• Both A & B

### 33. What does it mean for a graph of data to be SKEWED RIGHT?

• Most of the data is grouped to the left side
• Most of the data is grouped to the right side
• Most of the data is in the middle (draw a line down the middle and both sides look the same)
• None of these

• 50
• 40
• 1
• 5

• Biased
• Unbiased

### 36. Which answer shows categorical data?

• Age
• Height
• Number of cousins
• Favorite singer

### 37. Probability can be between what two numbers?

• 10 and 20
• 0 and 100
• 0 and 1
• All Numbers are possible

### 38. Amount of Education and Amount of income

• Positive Correlation
• Negative Correlation
• No Correlation
• None of these

### 39. Distance traveled vs. amount of gas in the car

• Positive Correlation
• Negative Correlation
• No Correlation
• All of above

• Yes
• No

• 5
• 4.7
• 4
• 9

• Roger - 6
• Susan - 7
• Roger - 8
• Susan - 5.5

• 2, 15
• 3, 19
• 2, 20
• 0, 100

### 44. A website asks a visitor to fill out anonline survey. Is this a random sample?

• Yes
• No, its voluntary
• No, its mandatory
• All of above

• 7
• 4.5
• 5
• 8

• 4.2
• 3.8
• 4.0
• 4

• 193
• 127
• 60
• 66

• 11
• 12
• 13
• 17

• True
• False

• mean
• median
• mode
• range