Question

iq scores are measured with a test designed so that the mean is 83 and the standard deviation is 20. consider the group iq scores that are unusual. what are the z scores that separate the unusual iq scored from those that are unusual? what are the iq scores that separate the unusual iq scores from those that are unusual? consider a value to be unusual if its z score is less than -2 or greater than 2.)

Answer 1

Oh my sorry didn’t know the answer