Which statement is TRUE about Standard normal distribution curve :
Ans. is 'b' ie Standard deviation = 1 & mean is 0 Standard Normal Curve*is based on infinitely large no of observationsit is smooth, bell shaped, perfectly symmetrical curve, it does not skew either to the right or left side.the total area of the curve is 1*Mean is O, *Standard deviation is 1*Mean, median, mode all coincide*
Mean -1, standard deviation - zero
Standard deviation 1, mean-zero
Curve skews towards left
Curve skews towards right
Measures of Central Tendency and Distribution