Statistics MCQs

734 MCQs  (Page 25 of 74)

Attempt Statistics Mcqs Quiz
In descriptive statistics, we study______________?
A. The description of decision making process
B. The methods for organizing, displaying, and describing data
C. How to describe the probability distribution
D. None of the above
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When data are collected in a statistical study for only a portion or subset of all elements of interest we are using?
A. A sample
B. A parameter
C. A population
D. Both b and c
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A chance variation in an observational process is_____________?
A. Dispersion/ variability
B. Measurement error
C. Random error
D. Instrument error
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A constant variable can take values______________?
A. Zero
B. Fixed
C. Not fixed
D. Nothing
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If x is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the x will be______________?
A. 8
B. 10
C. 6
D. 12
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If a distribution has two modes then this distribution is called______________?
A. Uni-modal
B. Bi-modal
C. Tri-modal
D. Multi-modal
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In a week the prices of a bag of rice were 350 ,280, 340, 290, 320, 310, 300. The range is_____________?
A. 60
B. 90
C. 70
D. 100
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A contractor employs 20 male, 15 female and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted x of wages paid per day will be_____________?
A. 3.86
B. 8.37
C. 9.21
D. 10.63
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Which of the following Measure of averages is affected by extreme (very small or very largE. values in data set?
A. Geometric mean
B. Median
C. Arithmetic mean
D. Harmonic mean
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The Harmonic Mean of any two numbers is________________?
A. A+b2
B. 2aba+b
C. Ab−−√
D. A+b
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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