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Statistics and Probability Basics Interview Questions and Answers
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Questions
Statistics and Probability Basics
0
votes
Q: What is the difference between a confidence interval and a prediction interval, and how do you calculate them?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
prediction-interval
0
votes
Q: What is the Law of Large Numbers in statistics and how it can be used in data science ?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
statistics
0
votes
Q: What is the relationship between the significance level and the confidence level in Statistics?###
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
significancelevel
confidencelevel
statistics
0
votes
Q: Say you have two subsets of a dataset for which you know their means and standard deviations. How do you calculate the blended mean and standard deviation of the total dataset? Can you extend it to K subsets?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
dataset
0
votes
Q: Discuss the Chi-square, ANOVA, and t-test
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
chi-square
anova
t-test
0
votes
Q: You sample from a uniform distribution [0, d] n times. What is your best estimate of d?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
uniform-distribution
0
votes
Q: What is skewness discuss two methods to measure it?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
skewness
0
votes
Q: What general conditions must be satisfied for the central limit theorem to hold?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
central-limit-theorem
0
votes
Q: You are testing hundreds of hypotheses, each with a t-test. What considerations would you take into account when doing this?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
hypotheses-testing
0
votes
Q: Say you flip a coin 10 times and observe only one head. What would be the null hypothesis and p-value for testing whether the coin is fair or not?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
null-hypothesis
0
votes
Q: What is the meaning of KPI in statistics
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
kpi-statistics
0
votes
Q: Explain the long-tailed distribution and provide three examples of relevant phenomena that have long tails. Why are they important in classification and regression problems?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
long-tailed-distribution
0
votes
Q: What is the meaning of selection bias and how to avoid it?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
selection-bias
0
votes
Q: Given a left-skewed distribution that has a median of 60, what conclusions can we draw about the mean and the mode of the data?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
left-skewed-distribution
0
votes
Q: Describe briefly the hypothesis testing and p-value in layman’s term? And give a practical application for them ?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
hypothesis-testing
0
votes
Q: Briefly explain the A/B testing and its application? What are some common pitfalls encountered in A/B testing?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
abtesting
0
votes
Q: Explain the central limit theorem and give examples of when you can use it in a real-world problem?
asked
Jun 28, 2023
in
Statistics and Probability Basics
by
SakshiSharma
central
limit
theorem
0
votes
Q: Formal procedures used by statisticians to accept or reject hypotheses is called __________.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
formal-procedures
0
votes
Q: The letter e in a Poisson experiment denotes __________.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
poisson-experiment
0
votes
Q: The __________ states that no significant difference exists between a set of variables.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
pobability
+1
vote
Q: If another event does not influence the occurrence of an event, it is called a Dependent Event.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
event-occurence
+1
vote
Q: Null Hypothesis and Alternative Hypothesis must be __________.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
null-hypothesis
0
votes
Q: Measures of Central Tendency includes __________.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
central-tendency
0
votes
Q: In a Binomial experiment, the letter P is used to denote __________.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
binomial-experiment
+1
vote
Q: P-Value measures the strength of evidence in support of a null hypothesis.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
p-value
0
votes
Q: What variable can take only a countable number of values?
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
probability
0
votes
Q: When a probability function is used to describe a discrete probability distribution, it is called __________.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
probability-function
0
votes
Q: Conditional Probability is denoted by __________.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
conditional-probability
0
votes
Q: __________ helps to make inferences about a population.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
inferences
0
votes
Q: The probability of committing a Type 1 error is called __________.
asked
Apr 23, 2022
in
Statistics and Probability Basics
by
sharadyadav1986
probability
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