Mathematics, 20.11.2019 00:31 luvcherie18
The scores on a placement test given to college freshmen for the past five years are approximately nor- mally distributed with a mean μ = 74 and a variance σ2 = 8. would you still consider σ2 = 8 to be a valid value of the variance if a random sample of 20 students who take the placement test this year obtain a value of s2 = 20?
Answers: 2
Mathematics, 21.06.2019 20:00
Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11
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Mathematics, 21.06.2019 21:20
If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°
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Mathematics, 22.06.2019 02:00
Reading tests are compared for two students. sara got 98, 100, 65, 78, 98, 46, 100, 100, 45, and 50 on her reading test. lee got 97, 67, 89, 99, 100, 45, 79, 89, 58, and 67 on his reading test.
Answers: 1
The scores on a placement test given to college freshmen for the past five years are approximately n...
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