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1.What is the probability that a randomly selected day from 2013 will have a Group Trades...

1.What is the probability that a randomly selected day from 2013 will have a Group Trades total within 94,000 of the mean?

Mean: 3421439

Standard dev: 508638.08

2.How many standard deviations below the mean was the Group Trades for August 14?

math   Statistics-And-Probability   
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