Types of Statistics

Question 1

Which of the following is a type of descriptive statistics?

A) Mean
B) Hypothesis Testing
C) Confidence Interval
D) Probability

Answer 1

A) Mean

Question 2

Inferential statistics is primarily concerned with:

A) Estimating probabilities
B) Describing data
C) Making inferences about a population
D) Summarizing sample data

Answer 2

C) Making inferences about a population

Question 3

What type of statistics would you use to summarize data from a survey?

A) Inferential statistics
B) Descriptive statistics
C) Non-parametric statistics
D) Parametric statistics

Answer 3

B) Descriptive statistics

Question 4

Which of the following is an example of inferential statistics?

A) Calculating the average age in a dataset
B) Estimating the population mean from a sample
C) Listing the modes
D) Calculating variance

Answer 4

B) Estimating the population mean from a sample

Question 5

Which type of statistics involves making predictions about a population based on a sample?

A) Inferential statistics
B) Descriptive statistics
C) Probability
D) Non-parametric statistics

Answer 5

A) Inferential statistics

Question 6

Parametric tests generally assume:

A) No assumptions about the population
B) Normal distribution of the population
C) Small sample sizes
D) Ordinal data

Answer 6

B) Normal distribution of the population

Question 7

Which of the following is an example of non-parametric statistics?

A) T-test
B) ANOVA
C) Chi-square test
D) Correlation coefficient

Answer 7

C) Chi-square test

Question 8

Descriptive statistics include all of the following except:

A) Mean
B) Mode
C) Standard deviation
D) Hypothesis testing

Answer 8

D) Hypothesis testing

Question 9

Which of the following is typically not considered descriptive statistics?

A) Range
B) Median
C) Hypothesis testing
D) Standard deviation

Answer 9

C) Hypothesis testing

Question 10

When comparing two unrelated groups with unknown distribution, which statistical test is appropriate?

A) T-test
B) Chi-square test
C) Z-test
D) ANOVA

Answer 10

B) Chi-square test

Question 11

Which measure is often used in descriptive statistics to represent the center of a dataset?

A) Mean
B) Standard deviation
C) Frequency
D) Hypothesis testing

Answer 11

A) Mean

Question 12

In inferential statistics, the process of estimating population parameters from sample statistics is called:

A) Estimation
B) Prediction
C) Summarization
D) Observation

Answer 12

A) Estimation

Question 13

Which statistical test is commonly used for non-normally distributed data?

A) T-test
B) ANOVA
C) Chi-square test
D) Z-test

Answer 13

C) Chi-square test

Question 14

Descriptive statistics are primarily used to:

A) Infer data for a population
B) Make predictions
C) Summarize and organize data
D) Draw conclusions from data

Answer 14

C) Summarize and organize data

Question 15

The chi-square test is an example of:

A) Parametric statistics
B) Inferential statistics
C) Non-parametric statistics
D) Descriptive statistics

Answer 15

C) Non-parametric statistics

Question 16

When data does not meet normality, which of the following tests is preferred?

A) Z-test
B) T-test
C) Mann-Whitney U test
D) Correlation

Answer 16

C) Mann-Whitney U test

Question 17

Which type of statistics is used to test hypotheses?

A) Parametric
B) Non-parametric
C) Descriptive
D) Inferential

Answer 17

D) Inferential

Question 18

Inferential statistics often uses which of the following concepts?

A) Sample size
B) Standard deviation
C) Significance testing
D) Range

Answer 18

C) Significance testing

Question 19

Which type of statistics would be used to determine if there is a relationship between two variables?

A) Parametric
B) Descriptive
C) Inferential
D) Non-parametric

Answer 19

C) Inferential

Question 20

The primary difference between descriptive and inferential statistics is:

A) The use of population parameters
B) The use of sample data
C) The method of collecting data
D) The purpose of data analysis

Answer 20

D) The purpose of data analysis

Question 21

Which of the following is true for parametric statistics?

A) It does not rely on population assumptions
B) It requires small sample sizes
C) It assumes normal distribution
D) It is rarely used

Answer 21

C) It assumes normal distribution

Question 22

Non-parametric tests are often used when:

A) Data is not normally distributed
B) Population parameters are known
C) Data is normally distributed
D) Sample size is large

Answer 22

A) Data is not normally distributed

Question 23

When is descriptive statistics not sufficient?

A) When the entire population can be studied
B) When making predictions or generalizations about a population
C) When data has no variability
D) When only summary is required

Answer 23

B) When making predictions or generalizations about a population

Question 24

Which of the following would be considered a part of inferential statistics?

A) Mean calculation
B) Creating a pie chart
C) Hypothesis testing
D) Calculating the mode

Answer 24

C) Hypothesis testing

Question 25

Non-parametric tests are suitable for data that is:

A) Normally distributed
B) Ordinal or nominal
C) Ratio
D) Interval

Answer 25

B) Ordinal or nominal