Mathematics, 26.12.2019 05:31 kadenbaker4788
Scores for men on the verbal portion of the sat-i test are normally distributed with a mean of 509 and a standard deviation of 112 .
(a) if 1 man is randomly selected, find the probability that his score is at least 587 .
(b) if 20 men are randomly selected, find the probability that their mean score is at least 587 .
20 randomly selected men were given a review course before taking the sat test. if their mean score is 587 , is there a strong evidence to support the claim that the course is actually effective?
(enter yes or no)
Answers: 2
Mathematics, 21.06.2019 19:30, Tcareyoliver
If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b
Answers: 1
Mathematics, 22.06.2019 01:30, OinkFred
20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.
Answers: 2
Mathematics, 22.06.2019 03:00, Angellopezzz
Determine whether the question is a statistical question. explain. 1. what is the eye of sixth grade students? 2. at what temperature (in degree fahrenheit) does water freeze? 3. how many pages are in the favorite books of students your age? 4. how many hours do sixth grade students use the internet each week? you!
Answers: 3
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