Suppose x is a normally distributed random variable with mu

equals

=13

13 and sigma

equals

=2

2. Find each of the following probabilities.

a.P(xgreater than or equals

16.5

16.5) b.P(xless than or equals

11.5

11.5) c.P(13.6

13.6less than or equals

xless than or equals

17.9

17.9) d.P(8.54

8.54less than or equals

xless than or equals

15.58

15.58)

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a.P(xgreater than or equals

16.5

16.5)equals

=

nothing

(Round to three decimal places asneeded.)