Posted by John on Monday, February 8, 2010 at 9:52pm.
Five friends go bowling and finish with the following scores. Jim bowls a 129, Bob bowls a 150, Ann bowls a 133, Tom bowls a 162 and Gina bowls a 148. Find Tom's zscore. Treat the data as a population. Don't forget to round to the nearest tenth.
The book says valuemean divided by sd. I have no idea what sd is.

Statistics  Kendra, Monday, February 8, 2010 at 10:20pm
sd=standard deviation

Statistics  John, Monday, February 8, 2010 at 10:54pm
oh thank you.
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