Posted by Anonymous on Wednesday, December 26, 2012 at 11:39pm.
13. A set of final exam scores in an organic chemistry course was found to be normally distributed, with a mean of 73 and a standard deviation of 8. What is the probability of getting a score higher that 71 on this exam?

math  Damon, Thursday, December 27, 2012 at 12:18am
7371 = 2
2/8 = .24 sigma below mean
go to normal distribution table
.5948 of distribution is below .24 sigma above mean

math  Anonymous, Tuesday, August 5, 2014 at 12:53am
55

math  Brandon, Sunday, July 26, 2015 at 11:25am
Z =Variable  Mean/ Standard deviation
Z =7173/8
Z =2/8
Z = 0.25
Z value .25 = .401294
To find higher than 71
1  .401294 = 0.5987
59.87 % will get a score higher than 71 on this exam.
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