Most recent developments in statistics arose to meet the needs of which field?
Correct answer A. Biology
Subject / 721 questions
Statistics MCQs
Page 34 of Statistics multiple-choice questions with answers. Tap an option to check yourself.
Page 34 of 37
What is the harmonic mean of two numbers a and b?
Correct answer A. 2ab/(a + b)
In what sense are the laws of statistics true?
Correct answer B. On average
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What is a distribution with two modes called?
Correct answer D. Bi-Modal
How many values can a constant take?
Correct answer B. One
Over a week, a bag of rice cost 350, 280, 340, 290, 320, 310 and 300. What is the range?
Correct answer D. 70
Which type of data is gathered for the first time?
Correct answer B. Primary
A contractor employs 20 men, 15 women and 5 children, paying Rs. 10, Rs. 8 and Rs. 3 per day respectively. What is the weighted mean daily wage?
Correct answer B. 8.37
What kind of data is the age of a shopkeeper?
Correct answer A. Continuous data
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For the values 2, 3, 4, 5 and 6 with mean 4, what is the sum of squared deviations from the mean?
Correct answer D. 10
Which mean is affected most by extreme values?
Correct answer D. AM
By what number must a proportion be multiplied to give a percentage?
Correct answer C. 100
When the term random variable is used in statistics, what must it have?
Correct answer A. Probability distribution
Of what is the marital status of a person an example?
Correct answer A. Attribute
Which sampling method is used when no sampling frame exists?
Correct answer B. Cluster sampling
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Which branch of statistics covers methods for organising, summarising and presenting data?
Correct answer D. Descriptive Statistics
Which sampling technique suits a population that is homogeneous?
Correct answer B. Simple random sampling
What is studied in descriptive statistics?
Correct answer A. The methods for organizing, displaying, and describing data
What is another name for a statistical population?
Correct answer A. Universe
What kind of variable is the life of a TV picture tube?
Correct answer D. Continuous variable