If a distribution has two modes then this distribution is called______________?

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

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

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

The Harmonic Mean of any two numbers is________________?

A. a+b2

B. 2aba+b

C. ab−−√

D. a+b

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

E. Mode