**Q.1** __________ contains all the elements of a dataset.

**A.** Population

**B.** Sample

**C.** Event

**D.** None of the options

**Ans : **Population

**Q.2** Descriptive Statistics works on __________ dataset.

**A.** Sample

**B.** Population

**C.** Both the options

**Ans : **Sample

**Q.3** __________ is an art of learning data.

**A.** Statistics

**B.** Probability

**C.** Both the options

**D.** None of the options

**Ans : **Statistics

**Q.4** The probability of committing a Type 1 error is called __________.

**A.** Significance Level

**B.** Power of Test

**C.** None of the options

**D.** All the options

**Ans : **Significance Level

**Q.5** __________ provides the summary statistics of data.

**A.** Descriptive Statistics

**B.** Inferential Statistics

**Ans : **Descriptive Statistics

**Q.6** In __________ test, the region of rejection is only on one side of the sampling distribution.

**A.** Two-tailed

**B.** One-tailed

**Ans : **One-tailed

**Q.7** __________ is calculated by multiplying each of the possible outcomes in the sample space with the likelihood of their occurrence, and then summing up all the values.

**A.** Standard Deviation

**B.** Expected Value

**C.** Variance

**D.** None of the options

**Ans : **Expected Value

**Q.8** Any event containing two or more elements of the sample space is known as a ___________.

**A.** Compound Event

**B.** Simple Event

**C.** Mutually Exclusive Event

**D.** Dependent Event

**Ans : **Mutually Exclusive Event

**Q.9** __________ helps to make inferences about a population.

**A.** Descriptive Statistics

**B.** Inferential Statistics

**C.** All the options

**D.** None of the options

**Ans : **Inferential Statistics

**Q.10** A __________ random variable takes infinite number of values.

**A.** Continuous

**B.** Discrete

**C.** All the options

**D.** None of the options

**Ans : **Continuous

**Q.11** Null Hypothesis must be rejected if P-Value is __________ than Significance Level.

**A.** Lesser

**B.** Greater

**Ans : **Lesser

**Q.12** Null Hypothesis and Alternative Hypothesis must be __________.

**A.** Mutually exclusive

**B.** Non-mutually exclusive

**Ans : **Mutually exclusive

**Q.13** P-Value measures the strength of evidence in support of a null hypothesis.

**A.** True

**B.** False

**Ans : **True

**Q.14** The __________ states that no significant difference exists between a set of variables.

**A.** Alternative Hypothesis

**B.** Null Hypothesis

**C.** None of the options

**D.** All the options

**Ans : **Null Hypothesis

**Q.15** __________ enable to observe data dispersion from a central point.

**A.** Mean and Median

**B.** Range, Standard Deviation, and Variance

**C.** Range and Median

**D.** Mean, Median, and Mode

**Ans : **Range, Standard Deviation, and Variance

**Q.16** F Distribution and T Distribution are examples of __________.

**A.** Continuous Distribution

**B.** Discrete Distribution

**C.** All the options

**D.** None of the options

**Ans : **Continuous Distribution

**Q.17** The letter e in a Poisson experiment denotes __________.

**A.** The mean number of successes that occur in a specified region

**B.** A constant whose value is approximately 2.71828

**C.** The actual number of successes that occur in a specified region

**D.** All the options

**Ans : **A constant whose value is approximately 2.71828

**Q.18** Discrete Distribution includes __________.

**A.** Binomial and Chi-Square

**B.** Poisson and Normal Distribution

**C.** Binomial and Poisson

**D.** None of the options

**Ans : **Binomial and Poisson

**Q.19** The probability of an event ( B ), given that another ( A ) has already occurred is denoted by __________.

**A.** P(A AND B)

**B.** P(A|B)

**C.** P(A OR B)

**D.** P(B|A)

**Ans : **P(A AND B)

**Q.20** Formal procedures used by statisticians to accept or reject hypotheses is called __________.

**A.** Statistical Hypothesis

**B.** Hypothesis Testing

**C.** None of the options

**Ans : **Hypothesis Testing

**Q.21** __________ calculates the number of events occurring in a specific period, when given the average number of times the event occurs in that time span.

**A.** Poisson Distribution

**B.** Binomial Distribution

**C.** Normal Distribution

**D.** Uniform Distribution

**Ans : **Poisson Distribution

**Q.22** What variable can take only a countable number of values?

**A.** Continuous

**B.** Discrete

**C.** None of the options

**D.** All the options

**Ans : **Discrete

**Q.23** A Discrete Random value can take any value within an interval on the real line.

**A.** True

**B.** False

**Ans : **True

**Q.24** Type 2 Error occurs when a researcher fails to reject a false null hypothesis.

**A.** True

**B.** False

**Ans : **True

**Q.25** Sample is a subset of population.

**A.** True

**B.** False

**Ans : **True

**Q.26** Is the process of applying logical or statistical techniques to evaluate and describe data in a meaningful way.

**Ans : **Data Analysis

**Q.27** Holds the responsibility of describing the data collected.

**Ans : **Statistics

**Q.28** Descriptive Statistics works on __________ dataset.

**Ans : **Sample

**Q.29** The Hypothesis test process contains __________ steps.

**Ans : **5

**Q.30** The process of setting up a range of values within which a parameter is included is called __________.

**Ans : **Confidence Intervals

**Q.31** Probability of getting either a King or Queen card in a deck of cards is an example of __________.

**Ans : **Non-mutually Exclusive Event

**Q.32** Statistical Hypothesis is an assumption about Sample Parameter.

**A.** True

**B.** False

**Ans : **False

**Q.33** The probability of committing a Type 1 error is called __________.

**Ans : **Significance Level

**Q.34** A set of events devouring the entire sample space is called __________.

**Ans : **Exhaustive Event

**Q.35** The letter e in a Poisson experiment denotes __________. A constant whose value is approximately

**Ans : **2.71828

**Q.36** An entertainment company specifies that its employees must weigh between 40 kgs – 50 kgs. If X is the random variable denoting the weights of employees, X is a __________ random variable.

**Ans : **Continuous

**Q.37** __________ represents the outcome of a statistical experiment in numerical values.

**Ans : **Random Variable

**Q.38** The probability of not committing a __________ error is called Power of Test.

**Ans : **Type 2

**Q.39** In a Binomial experiment, the letter P is used to denote __________.

**Ans : **The probability of success on an individual trial

**Q.40** In a __________ experiment, each trial can result in either of the two outcomes only.

**Ans : **Binomial