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(1 point)   Let XiXi for i=1,2,3,… be a random variable whose probability distribution has an average...

(1 point)  

Let XiXi for i=1,2,3,… be a random variable whose probability distribution has an average of μ=15 and a standard deviation of σ=2. Assume the Xi are independent and continuous.

Let Sn=X1+⋯+Xn

To use a Normal distribution to approximate P(S49<750), find the area to the left of 750 under a Normal curve with center (average) and spread (standard deviation)  . The estimated probability is

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