P(µ – σ≤x≤µ + σ)=_________?
A. .6826
B. .6743
C. .6745
D. .2345
Normal Distribution
For a normal distribution having µ = 241 and σ = 2 P (X≥235) is:_______?
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
Normal distribution has ____shaped?
Normal distribution has ____shaped?
A. u-shaped
B. Bell shaped
C. T-shaped
D. Normal shaped
The equation of standard normal distribution is f(z)=________?
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∏
In normal distribution u2 = S2 and u4 =___________?
In normal distribution u2 = S2 and u4 =___________?
A. 3S2
B. 3S
C. 3S4
D. 4S2/x
The quartile deviation is ____ (S.D.) is normal dist?
The quartile deviation is ____ (S.D.) is normal dist?
A. .6734
B. .7879
C. .6745
D. .4567
Normal distribution has ______ parameter?
Normal distribution has ______ parameter?
A. Three
B. Two
C. Four
D. One
Normal distribution is a probability distribution of _____ random variable?
Normal distribution is a probability distribution of _____ random variable?
A. Continuous
B. Constant
C. Discrete
D. Normal