True or False: Any set of normally distributed data can be transformed to its standardized form.
True or False: The "middle spread," that is the middle 50% of the normal distribution, is equal to one standard
True or False: A normal probability plot may be used to assess the assumption of normality for a set of data.
True or False: If a data set is approximately normally distributed, its normal probability plot would be
Write the word or phrase that best completes each statement or answers the question.
The probability that a standard normal variable
is positive is ________.