Mathematics, 28.01.2021 01:00, satwikap3304

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 distribution, you can do normal calculations with the combined statistics. What is the probability that a random student scored 1100 or better?
0.3189
1.2232
1.987
2.302

Answers: 1

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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...