Online NAT IGS General Science Statistics Test Preparation for Pakistani Students

NAT I General Science Statistics

Sr. #	Questions	Answers Choice
1	Which is correct regarding the normal distribution	b<sub>1</sub> = 3 b<sub>2</sub> = 0 Q.D = 0.7979 S Q1 = m 0.6745S
2	The normal distribution curve is:	U Shaped I shaped Uniform Bell shaped
3	The mean of the standard normal distribution is	0 1 100
4	Set of electronic instruction is	Hardware Software Ouput device None of these
5	An after Eid sale in store is an example of	Secular trend Attributes Constants None of those
6	The correlation coefficient would be	1.95 -1.95 0.95 None of these
7	If R_xy = - 0.84 then r_xy is	-0.84 0.84 0.42 None of these
8	If two regression coefficients are 0.8 and 0.2 then correlation coefficient is	0.16 -0.16 0.40 -0.40
9	The probability of type-1 error is denoted by	a 1- a b 1- b
10	By decreasing ×̅ the length of confidence interval for m	Increases Decreases No effect None of these