Online NAT IGS General Science Statistics Test Preparation for Pakistani Students

NAT I General Science Statistics

Sr. #	Questions	Answers Choice
1	Is a normal distribution μ = 10 and σ² = 25 the mode is	5 10 25 100
2	For the standardized normal variate P(0Σ z Σ1) =...............	0.34135 0.47725 0.49867 0.33725
3	The binomial distribution is symmetrical when	p = q p > q p < q None of these
4	A binomial random variable can assume only the values	1,2,3.........n 0,1,2............<strike>y</strike> 0,1,2...........n None of these
5	The probability of an event can never be	Zero 1 0.5 Negative
6	The most suitable average in the construction of index number is	Mean Geometric mean Median Mode
7	A disadvantage of range is that it is based on	Absolute deviation Squared deviations Two extreme observation
8	If any value in the series is zero then it is impossible to calculate	Mean Geometric mean Mode None of these
9	Sum of deviation of observation from their mean cannot be	Zero Less than zero Other than zero Greater than zero
10	An arrangement of data to show the frequency of occurrence is called	Frequency distribution Probability distribution Data array Cumulative distribution