Mathematics, 21.07.2019 11:00, marisolishwerd2265

On the math portion of the sat, the mean score was 510 with a standard deviation of 95. on the verbal portion, the mean score was 530 with a standard deviation of 85. you now know the mean of the combined score is 1040 with a standard deviation of 127.48. given that these are normal distributions, you can do normal calculations with the combined statistics. what is the probability that a random student scored 1100 or better?

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On the math portion of the sat, the mean score was 510 with a standard deviation of 95. on the verba...