Question

Use the normal distribution of SAT critical reading scores for which the mean is 510

and the standard deviation is 110

Assume the variable x is normally distributed.

Approximately what % of the SAT verbal scores are less than 650?

If 1000 SAT verbal scores are randomly​ selected, about how many would you expect to be greater than 550​?

(round to 2 decimal places as needed)

Answer 1

Hello SIr/ Mam

Given that:

Mean =	510.00
Standard Deviation =	110.00
X	650.00

Now,

(a)

(b)

Hence, when 1000 are selected, about 358 are expected to be greater than 550.

I hope this solves your doubt.

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