In a normal distribution E(X-µ)2 is________________?
A. Variance
B. Mean Deviation
C. Standard Deviation
D. Quartile Deviation
Shape of normal curve can be related to_______________?
Shape of normal curve can be related to_______________?
A. Bell
B. Circle
C. L
D. Rectangle
E. J
We use normal distribution when “n” is________________?
We use normal distribution when “n” is________________?
A. Small
B. None
C. Fixed
D. Large
Total Area under the normal curve is_______________?
Total Area under the normal curve is_______________?
A. Greater than 1
B. 1
C. None
D. Less than 1
E. 0
The lower and upper quartile of standard normal variation are respectively ?
The lower and upper quartile of standard normal variation are respectively ?
A. µ+0.6745σ and µ-0.6745σ
B. -0.6745 and 0.6745
C. -0.7979 and 0.7979
D. -0.7979σ and 0.7979σ
If X N(55,49) then σ ?
If X N(55,49) then σ ?
A. 7
B. 55
C. 104
D. 49
The median of normal distribution corresponds to the value of Z equal to_________________?
The median of normal distribution corresponds to the value of Z equal to_________________?
A. 0.5
B. 1
C. µ
D. 0
Mean deviation of Normal Distribution is_____________?
Mean deviation of Normal Distribution is_____________?
A. 45σ
B. 34σ
C. 78σ
D. 23σ
The area under the normal distribution curve outside the interval of z=1 and z=3.09 is_____________?
The area under the normal distribution curve outside the interval of z=1 and z=3.09 is_____________?
A. None of the above
B. 0.1477
C. 0.1597
D. 0.3413
E. 0.4990
The normal distribution is_________?
The normal distribution is_________?
A. Platykurtic
B. Leptokurtic
C. Mesoukurtic
D. None of these