Online NAT IGS General Science Statistics Test Preparation for Pakistani Students

NAT I General Science Statistics

Sr. #	Questions	Answers Choice
1	If any value is zero in the data then it is impossible to calculate:	Arithmetic mean Geometric mean Mode Median
2	The harmonic mean of two numbers a and b is:	2ab/ a+ b 2 /  a +b ab / a + b a + b/ ab
3	The average value of the lower and upper limits of a class is called:	Class boundry Class frequency Mid point Class interval
4	A graph of a cumulative frequency distribution is called:	Frequency curve Frequency polygon Ogive Histogram
5	Binomial distribution has parameters:	One Two Three Four
6	If 'c' is a non-random variable then E(c) is:	Zero C Two None of these
7	The probability of an impossible event is equal to:	Zero One 0.5 None of these
8	Basic year weighted index numbers are:	Laspeyre's Paasche's Fisher's None of these
9	First moment about mean is always:	Zero 1 Negative None of these
10	Variance is always calculated from:	Mean Median Geometric mean Mode