# Question: Trading volume on a major stock exchange is approximately normally

Trading volume on a major stock exchange is approximately normally distributed with a mean of 232 million shares and a standard deviation of about 44 million shares.

a. What is the probability that the trading volume will be less than 200 million shares?

b. If the exchange wants to issue a press release when trading volume is in the top 2% of trading days, what trading volume would trigger a press release?

c. What percentage of the time does the trading volume exceed 300 million shares?

a. What is the probability that the trading volume will be less than 200 million shares?

b. If the exchange wants to issue a press release when trading volume is in the top 2% of trading days, what trading volume would trigger a press release?

c. What percentage of the time does the trading volume exceed 300 million shares?

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