Statistics (Checking Normality) word problem.. Please hlep !!?

Statistics (Checking Normality) word problem.. Please hlep !!?

Statistics (Checking Normality) word problem.. Please hlep !!?


i agree with the previous method, "a) ? = 8.6 ? = 1.2 P(x > 10) = P( z > (10-8.6) / 1.2) = P(z > 1.1667) = 0.121 or 12.1 percent" but isnt 1.667 in the probability table between .3770-.379, not .121?



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