Data Science Maths Probability Statistics

Statistics and Probability Katabasis Interview Question-Answer

By Smart Answer

Updated on:


Q.1 Probability of the sure event is __________.

       A. 0

       B. -infinity

       C. 1

       D. infinity

Ans : 1

Q.2 Inferential Statistics conclusions are represented in the form of __________.

       A. Probability Scores

       B. Charts

       C. Forms

       D. All the options

Ans : All the options

Q.3 Sample Space is denoted by __________.

       A. s

       B. S

Ans : S

Q.4 PMF produces the likelihood of __________ random variable.

       A. Discrete

       B. Continuous

Ans : Discrete

Q.5 Expected Value is same as Mean and Average.

       A. True

       B. False

Ans : True

Q.6 Sample Space is a subset of an Event.

       A. True

       B. False

Ans : False

Q.7 An experiment can be repeated __________.

       A. Infinitely

       B. Finitely

Ans : Infinitely

Q.8 __________ denotes the set of all outcomes obtained in an experiment process.

       A. Event

       B. Sample

       C. Sample Space

Ans : Sample Space

Q.9 Central Limit Theorem condition remains true regardless of whether the population is skewed or normal, provided the sample size is sufficiently large. What is the minimum size of sample to hold this condition?

       A. 20

       B. 30

       C. 40

Ans : 30

Q.10 Inferential Statistics produces inferences from __________.

       A. Sample

       B. Populations

       C. All the options

Ans : Sample

Q.11 Descriptive Statistics works on __________ dataset.

       A. Sample

       B. Population

       C. All the options

Ans : Sample

Q.12 __________ maps outcomes of an experiment with numerical values.

       A. Random Variables

       B. Probability

Ans : Random Variables

Q.13 __________ is the science of learning from data.

       A. Statistics

       B. Probability

Ans : Statistics

Q.14 The Central Limit Theorem states that as the sample size gets larger, the sampling distribution of the sample means approaches a normal distribution.

       A. True

       B. False

Ans : True

Q.15 The Acronym ANOVA stands for __________.

       A. Analysis of Variance

       B. Analysis of Variance and Expected Value

       C. Analysis of Variant

Ans : Analysis of Variance

Q.16 Probability value always lies between __________ and __________.

       A. -infinity,infinity

       B. 0,1

       C. infinity, -infinity

       D. -1,1

Ans : 0,1

Q.17 Individual repetitions of experiment is termed as __________.

       A. try

       B. flips

       C. trials

       D. All the options

Ans : trials

Q.18 Measures of Spread include(s)

       A. Mean and Mode

       B. Median and Mode

       C. Mean

       D. Range, Standard Deviation, Variance

Ans : Range, Standard Deviation, Variance

Q.19 NumPy package of Python can be used to calculate the mean measure.

       A. True

       B. False

Ans : True

Q.20 The sum of probability of an event and its complementary is __________.

       A. 1

       B. 0

       C. infinity

Ans : 1

Smart Answer


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