In: Statistics and Probability
. Suppose the scores on a chemistry test were normally distributed with a mean of 78 and a standard deviation of 10. If a student who completed the test is chosen at random,
For a I know you do 75-78/10=-.8 but I dont know how someone goes from P(x<75)=0.382 How do get the .382? Please show work I'd much appreciate it
12E.The body temperatures of adults are normally distributed with a mean of 98.60 and a standard deviation of 0.73. What temperature represents the 85th percentile