Statistics MCQs

734 MCQs  (Page 29 of 74)

Attempt Statistics Mcqs Quiz
The variance of 5 numbers is 10. If each number is divided by 2, then the variance of new numbers is______________?
A. 20
B. 5
C. 2.5
D. 5.5
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Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be______________?
A. 50
B. 70
C. 50/20
D. 50-20 = 30
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Var(2X+3) is________________?
A. 5 var(x)
B. 4 var(x)
C. 4 var(x)+3
D. 5 var(x)+3
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The standard deviation is always _________ than mean deviation?
A. Greater
B. Less
C. Equal
D. None
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when a three die rolled the sample space consists of _____________?
A. 6 outcomes
B. 24 outcomes
C. 216 outcomes
D. Non of these
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The probability of even/odd numbers when a fair die is rolled is____________?
A. 1/6
B. 2/6
C. 1/36
D. 3/6
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An events that contains the finite number point the sample space is called __________________?
A. Finite
B. Random
C. Continuous
D. Values
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The probability of a save event is equal to _________________?
A. Two
B. Three
C. Four
D. One
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The time taken by an athlete to run a 400 mile race in SAF games ________________?
A. Continuous data
B. Random
C. Discrete data
D. Non of these
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If E (ax) = _______________?
A. A
B. A e(x)
C. X e(a)
D. Non of these
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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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