For the sample of M=85, a score of X=90 corresponds to z=0.50 what is the sample of standard deviation?
2. In a population of exam scores a scores if x=88 corresponds to z=+2.00 and a score of x=79 and corresponds to z=-1.00 find the mean and standard deviation for the population.
Sketch the distribution and locate the two scores on the sketch.
3. a population of the following N=5 scores: 0,6,4,3, and 12
a) compute μ and σ for the population
b) find the z-score for each score in the population
c) transfer the original population into a new population of N=5 scores with a mean of μ =60 and a standard deviation of σ=8