In an r × c contingency table used to test independence, how many degrees of freedom are there?
Correct answer A. (r -1) (c -1)
Subject / 721 questions
Statistics MCQs
Page 17 of Statistics multiple-choice questions with answers. Tap an option to check yourself.
Page 17 of 37
What is a table showing the classification of data by two attributes called?
Correct answer B. Contingency table
What is the division of a population into three classes called?
Correct answer A. Trichotomy
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The correlation coefficient rxy is always equal to?
Correct answer D. ryx
Which of the following is richness NOT an example of?
Correct answer A. Variable
What are attributes called when there is some relationship between them?
Correct answer C. Associated
What is the value of the coefficient of association when association is perfect?
Correct answer C. +1
Two attributes are positively associated when the expected frequency is?
Correct answer B. Less than observed
If x and y are independent of each other, what is their correlation coefficient?
Correct answer D. 0
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(AβC) is a class frequency of which order?
Correct answer C. 3
If (AB) > (A)(B)/n, what are A and B?
Correct answer A. Associated
What kind of variable is the response variable in regression?
Correct answer B. Random variable
Who first introduced the term ‘regression’?
Correct answer C. Sir F. Galton
In hypothesis testing, what happens to the power (1 − β) when α increases?
Correct answer A. Increases
Which test is considered more powerful than the sign test for paired data?
Correct answer A. Wilcoxon signed rank test
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How is a cumulative frequency distribution represented on a graph?
Correct answer C. Ogive
Which statistician is widely regarded as the ‘Father of Modern Statistics’?
Correct answer B. Ronald Fisher
Which distribution describes the number of successes in a fixed interval of time?
Correct answer D. Poisson distribution
Which distribution describes the time interval between two successive successes?
Correct answer C. Exponential distribution
How many stages are there in the demographic transition model?
Correct answer A. Five