561. If any value in the data is zero, then which of the following average vanishes_________?

A. A.M.
B. G.M.
C. H.M.
D. None of these

562. Group data formula for mode _______?

A. 1+ fm – f2/f1 – f2 x h
B. 1+ f1 – f2/f2 – fm x h
C. 1 + fm – f1/ (fm – f1) + (fm1 – f2) x h
D. 1+ fm1 – f2/f1 – fm x h

563. If any value in the data is zero, then it is not possible to have _______?

A. A.M.
B. Medain
C. Mode
D. H.M.

564. Coded method of calculation is only used in ___________?

A. Median
B. Combined mean
C. A.M.
D. None of these

565. The arithmetic mean of 10,8,6,4, and 2 is ______________?

A. 5
B. 15
C. 6
D. 30

566. The mode of the data 2,4,6,6,6,8 is _______________?

A. 4
B. 6
C. 8
D. 30

567. We must arrange the data before calculating _________?

A. Mean
B. Median
C. Mode
D. G.M.

568. Sum of obsolete deviations from _____ is least?

A. Mean
B. Median
C. Harmonic
D. Mode

569. The Harmonic Mean of two number is ‘a’ and ‘b’ is given by ____________?

A. a+b/2
B. 2ab/a+b
C. √ab
D. None of these

570. Median is _______ than mean is a positive skewed distribution?

A. Great
B. lesser
C. Equal
D. None of these