Mathematics, 12.11.2019 07:31 andy5843
According to the u. s. department of education. institute of education sciences, national center for education statistics 1,026,000 high school seniors (rounded to the nearest thousand) took the act test as part of the college admissions process. the mean composite score was 21.1 with a standard deviation of 4.8. the act composite score ranges from 1 to 36, with higher scores indicating greater achievement in high school.
according to the central limit theorem, what are the mean and standard error of the distribution of sample means for a sample of 50 students?
a. 50 and 21.1
b. 21.1 and 4.8
c. 21.1 and 0.68
d. 21.1 and 0.10
Answers: 2
Mathematics, 21.06.2019 14:30
After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %
Answers: 2
Mathematics, 21.06.2019 18:40
Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
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Mathematics, 21.06.2019 19:00
Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).
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Mathematics, 21.06.2019 21:00
Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?
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