591. In normal distribution u2 = S2 and u4 =___________?

A. 3S2
B. 3S
C. 3S4
D. 4S2/x

592. The equation of standard normal distribution is f(z)=________?

A. 1/σ√2∏e 1/2×2
B. 1/σ√2∏e -1/2×2
C. 1/√2∏
D. 1/σ√2∏

593. Normal distribution has ____shaped?

A. u-shaped
B. Bell shaped
C. T-shaped
D. Normal shaped

594. For a normal distribution having µ = 241 and σ = 2 P (X≥235) is:_______?

A. 0.9986
B. 0.5
C. 0.475
D. 0.235

595. P(µ – σ≤x≤µ + σ)=_________?

A. .6826
B. .6743
C. .6745
D. .2345

596. The shape of normal distribution does depend upon _____ and variance?

A. x
B. S/σ2
C. u
D. 2 µ2

597. Normal distribution has ___________?

A. 1 parameter
B. 2 parameter
C. 3 parameter
D. 4 parameter

598. 100% of values lies in the limits are equal to ______________?

A. 40 and 60
B. 20 and 70
C. 20 and 30
D. 20 and 80

599. The range of normal distribution lies between _________?

A. -∞ to +∞
B. 0 to ∞
C. -∞ to 0
D. None of these

600. N(µ, 2σ) means normally distribution with mean u and variance2σ then (3σ, 4) means _____________?

A. 46
B. 76
C. 36
D. 47