How many modes does a normal distribution have?
Correct answer C. Unimodal
Subject / 721 questions
Statistics MCQs
Page 12 of Statistics multiple-choice questions with answers. Tap an option to check yourself.
Page 12 of 37
Index numbers are used to measure seasonal and cyclical variations in?
Correct answer C. Time Series
To which line is the normal curve asymptotic?
Correct answer A. X-axis
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When two fair coins are tossed once, what is the probability of getting exactly two heads?
Correct answer D. 1/4
What is an index number calculated for more than one item called?
Correct answer D. Simple aggregative index number
The ratio of a given year’s price to the base year’s price, expressed as a percentage, is called the?
Correct answer B. Price relative
A coin is weighted so that P(T) = 2P(H). What is P(H)?
Correct answer A. 1/3
If P(B|A) = 0.25 and P(A ∩ B) = 0.2, what is P(A)?
Correct answer D. 0.8
Into how many categories can weighted index numbers be classified?
Correct answer D. Two
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In which method is the previous year’s price used as the base?
Correct answer A. Chain Method
What does A ∩ B mean?
Correct answer B. The elements of A and B
What is an index number that measures changes in the quantity of goods called?
Correct answer C. Quantity Index Number
If A is the set of males in a town and B the set of females in that town, what are A and B?
Correct answer B. Non-overlapping sets
An index number is a ____ for measuring changes in a variable or group of related variables. Which word fills the blank?
Correct answer C. Device
If one card is chosen from a standard pack, what is the probability that it is a diamond (♦) or a club (♣)?
Correct answer B. 26/52 = 1/2
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Index numbers play an important role in the fields of economics and?
Correct answer C. Business
What is a list of the possible outcomes of an experiment together with their probabilities called?
Correct answer E. Probability distribution
What does the symbol Q0n stand for in index numbers for a given year?
Correct answer C. Quantity Index
In which approach to probability are the outcomes assumed to be equally likely?
Correct answer D. Classical Probability
If one card is chosen from a standard pack, what is the probability that it is a five or a seven?
Correct answer B. 8/52