The standard normal distribution is the normal distribution of the standard variable z (called the standard score or z-score).
Indicate whether the statement is true or false
Q. 2Standard normal scores have a mean of one and a standard deviation of zero.
Indicate whether the statement is true or false
Q. 3The value of z(0.60) + z(0.40) is 0.0.
Indicate whether the statement is true or false
Q. 4The value of z(0.75) + z(.25) is 1.0.
Indicate whether the statement is true or false
Q. 5When using the notation z(0.05), the number in parentheses is the measure of the area to the right of the z-score.
Indicate whether the statement is true or false
Q. 6z(0.15) is the algebraic name for the z such that the area to the left and under the standard normal curve is exactly 0.15.
Indicate whether the statement is true or false
Q. 7In the statement z(0.33) = 0.44, the number 0.33 represents a value for z and the number 0.44 represents the area to the right of 0.33.
Indicate whether the statement is true or false
Q. 8If the random variable z is the standard normal score, then z(0.50) = z(0.50).
Indicate whether the statement is true or false
Q. 9If the random variable z is the standard normal score, then z(0.35) = z(0.35).
Indicate whether the statement is true or false
Quick Reply
