# Basics of Statistics and Probability MCQs Solution | TCS Fresco Play

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Assessment (Rules Of Probability)

1.__________ provides the summary statistics of data.

1. Descriptive Statistics
2. Inferential Statistics

2.__________ is the process of applying logical or statistical techniques to evaluate and describe data in a meaningful way.

1. Data Exploration
2. Data Collection
3. Data Analysis
4. None of the options

3.__________ is an art of learning data.

1. Statistics
2. Probability
3. Both the options
4. None of the options

4.Descriptive Statistics works on __________ dataset.

1. Sample
2. Both the options
3. Population

5.__________ holds the responsibility of describing the data collected.

1. Statistics
2. None of the options
3. Probability
4. Both the optionsn

6.__________ contains all the elements of a dataset.

1. None of the options
2. Event
3. Sample
4. Population

Final Assessment

1.Any event containing two or more elements of the sample space is known as a ___________.
1. Simple Event
2. Mutually Exclusive Event
3. Dependent Event
4. Compound Event

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

1. Binomial Distribution
2. Poisson Distribution
3. Normal Distribution
4. Uniform Distribution

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

1. Poisson
2. Normal
3. Binomial
4. Uniform

4.__________ enable to observe data dispersion from a central point.

1. None of the options
2. Range, Standard Deviation, and Variance
3. Range and Median
4. Mean and Median
5. Mean, Median, and Mode

Answer: 2)Range, Standard Deviation, and Variance

5.__________ represents the outcome of a statistical experiment in numerical values.

1. Event
2. Random Variable
3. Sample
4. Population

6.The Hypothesis test process contains __________ steps.

1. 3
2. 4
3. None of the options
4. 5

7.Null Hypothesis must be rejected if P-Value is __________ than Significance Level.

1. Greater
2. Lesser

8.The probability of committing a Type 1 error is called __________.

1. Power of Test
2. All the options
3. None of the options
4. Significance Level

9.__________ helps to make inferences about a population.

1. None of the options
2. Inferential Statistics
3. Descriptive Statistics
4. All the options

10.Conditional Probability is denoted by __________.

1. None of the options
2. P(A|B)
3. P(A AND B)
4. P(A OR B)

11.When a probability function is used to describe a discrete probability distribution, it is called __________.

1. Probability density function
2. Cumulative Distributive Function
3. Probability Mass Function
4. None of the options

12.What variable can take only a countable number of values?

1. All the options
2. Discrete
3. None of the options
4. Continuous

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

1. False
2. True
3. 14.In a Binomial experiment, the letter P is used to denote __________.
4. The probability of failure on an individual trial
5. The probability of success on an individual trial
6. Number of Trials
7. None of the options

15.Measures of Central Tendency includes __________.

1. Mean
2. Median
3. All the options
4. Mode

16.Null Hypothesis and Alternative Hypothesis must be __________.

1. Non-mutually exclusive
2. Mutually exclusive

17.If another event does not influence the occurrence of an event, it is called a Dependent Event.

1. False
2. True

18.The __________ states that no significant difference exists between a set of variables.

1. Alternative Hypothesis
2. None of the options
3. Null Hypothesis
4. All the options

19.The letter e in a Poisson experiment denotes __________.

1. All the options
2. The mean number of successes that occur in a specified region
3. The actual number of successes that occur in a specified region
4. A constant whose value is approximately 2.71828
5. None of the options

Answer: 4)A constant whose value is approximately 2.71828

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

1. None of the options
2. Hypothesis Testing
3. Statistical Hypothesis