Statistics Mcqs — Test 9
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Question 1
In descriptive statistics, we study______________?
Question 2
When data are collected in a statistical study for only a portion or subset of all elements of interest we are using?
Question 3
A chance variation in an observational process is_____________?
Question 4
A constant variable can take values______________?
Question 5
If x is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the x will be______________?
Question 6
If a distribution has two modes then this distribution is called______________?
Question 7
In a week the prices of a bag of rice were 350 ,280, 340, 290, 320, 310, 300. The range is_____________?
Question 8
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_____________?
Question 9
Which of the following Measure of averages is affected by extreme (very small or very largE. values in data set?
Question 10
The Harmonic Mean of any two numbers is________________?