The given statement about normal score that it is expected z score of a data value is true.
Given A statement that a normal z score is the expected z score of a data value, assuming the distribution of the random variable is normal.
We have to tell whether the given statement is true or false.
In z test the z score or standard score is the number of standard deviations by which the value of a raw score is above or below the mean value of what is observed or measured.
A normal distribution is arrangement of a data set in which most values cluster in the middle of the range and the rest taper off symmetrically toward either extreme.
A random variable is a variable which is identified without following any criteria.
A Z test is any statistical test for which the distribution of the test statistic under the null hypothesis ca be approximated by a normal distribution.
Hence the given statement about normal score is absolutely true.
Learn more about normal distribution at brainly.com/question/4079902
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