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# With regards to a standard normal distribution complete the following: (a)Find P(z 0.5 (b)Find P(z gt; 1), the proportion of the standard normal...

With regards to a standard normal distribution complete the following:

(a)Find P(z 0.5

(b)Find P(z > 1), the proportion of the standard normal distribution above the z-score of 1.

0.841344746

(c)Find P(-1

(d)Find P( z

(e)Find the z-score that separates the lower 90% of standarized scores from the top 10% . . . that is find the z-score corresponding to P90, the 90th percentile value.