In: Statistics and Probability
Scores were obtained from a hypothetical test A. Only 12 scores from a large group in which the distribution of scores is approximately normal are presented here.
75 61 93 84 11 50 36 42 57 76 46
70
Mean=58
SD=23
58.41667 23.00774
Using normal distribution to estimate approximately what percent of students in the group would score lower than 75? Approximately what percent of students in the group would have a score between 42 and 75?