Question: 3.A statistical analysis long distance telephone call made from the headquarters of the Bricks and Clicks Computer Corporation indicates that the length of these calls

3.A statistical analysis long distance telephone call made from the headquarters of the Bricks and Clicks Computer Corporation indicates that the length of these calls is normally distributed, with mean 240 seconds and standard deviation of 40 seconds.

What is the length of a call if only 2% of all calls are shorter?

I am having trouble understanding the question. Can you please assist? Thank you.

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