Mathematics, 11.11.2019 22:31 uzezi
The proportion of college freshmen that returned to the same school for their sophomore year is 0.75. we select a random sample of 430 freshmen from across the nation..75 is the expected value of the sampling distribution model for the proportion of 430 freshmen that will return to the same school for their sophomore year.1. so, what is the standard deviation of the sampling distribution model for the proportion of 430 freshmen that will return to the same school for their sophomore year? (rounded to 3 decimal places)2. what is the probability that the proportion of these 430 freshmen that return to the same school for their sophomore year is less than 0.67? (rounded to 4 decimal places)
Answers: 1
Mathematics, 21.06.2019 14:00
△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .
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Mathematics, 21.06.2019 17:30
Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?
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Mathematics, 21.06.2019 18:10
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Mathematics, 21.06.2019 18:30
Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.
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The proportion of college freshmen that returned to the same school for their sophomore year is 0.75...
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