Previous 12 3 Next Question 1 of 3 (1 point) View problemin a pop-up The nationa

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Previous 12 3 Next Question 1 of 3 (1 point) View problemin a pop-up The national average SAT score (for verbal and math) is 1028. Assume a normal distribution with 92. Use a graphing calculator. Source: New York Times Almanac. Part 1 What is the 78th percentile score? (Round the answer to the nearest whole number.) The 78th percentile score is 1099 Part 2 out of 2 What is the probability that a randomly selected score exceeds 1300? (Round the answer to four decimal places.) The probability that randomly selected score exceeds 1300 is NEXT F4 F5 F7 F8 F9 F1O 5

Explanation / Answer

Part 2]

Probability of randomly selected score exceed 1300

Pr( X > 1300 ) = 1 - Pr( X =< 1300) = 1 - 0.9984 = 0.0016

Since using Excel command " NORMDIST(1300, 1028, 92, TRUE) ", we get Pr( X =< 1300) = 0.9984.

Probability of randomly selected score exceed 1300 = 0.0016

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