Hello,
Can someone check this for me, please?
In a coffee shop one in four customers asks for biscuits with coffee. Use normal distribution approximations to calculate:
1. The probability to 4 d.p., that for the first 100 customers fewer than 20 will ask for biscuits with their coffee.
My answer is 0.102, is it correct?
Thank you!
sorry if it looks a bit dodgy
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