Online NAT IGS General Science Statistics Test Preparation for Pakistani Students

NAT I General Science Statistics

Sr. #	Questions	Answers Choice
1	In Mesokurtic distribustion	m<sub>4</sub> < 3s<sup>4</sup> m<sub>4</sub> = 3s<sup>4</sup> m<sub>4</sub> <sup>1</sup> 3s<sup>4</sup> m<sub>4</sub> > 3s<sup>4</sup>
2	In unimodal distribution If mode is less than mean then distribution is	Symmetrical Normal Positively skewed Negatively skewed
3	Sum of deviation from Mean is always	Negative Positive Zero Fractional
4	Sum of dots when two dice are rolled is:	Discrete variable continuous variable Constant Qualitative variable
5	A fair coin is tossed four times the prob.of getting four heads is:	1/4 1/2 1/16 1
6	In which distribution the successive trials are with replacement:	Hypergeometric distribution Binomial distribution Continuous distribution None of these
7	If var (x) =5, var(y) =10, then var (2x + y) is:	10 15 30 25
8	Which is correct for the binomial distribution:	Mean > Variance Mean < Variance Mean = Variance Mean = standard Deviation
9	Var (ax + b ) is:	a<sup>2</sup> var (x) + b a var (x) - a<sup>2</sup> a<sup>2</sup> var (x) Zero
10	The probability of red card out of 52 cards is:	1/4 1/2 4/52 Zero