Mathematics, 20.09.2019 16:30, jair512872
Suppose that 2% of the 2 million high school students who take the sat each year receive special accommodations because of documented disabilities. consider a random sample of 15 students who have recently taken the test. (round your probabilities to three decimal places.) (a) what is the probability that exactly 1 received a special accommodation? .132 incorrect: your answer is incorrect. (b) what is the probability that at least 1 received a special accommodation? .965 incorrect: your answer is incorrect. (c) what is the probability that at least 2 received a special accommodation? .833 incorrect: your answer is incorrect. (d) what is the probability that the number among the 15 who received a special accommodation is within 2 standard deviations of the number you would expect to be accommodated? .618 incorrect: your answer is incorrect. (e) suppose that a student who does not receive a special accommodation is allowed 3 hours for the exam, whereas an accommodated student is allowed 4.5 hours. what would you expect the average time allowed the 15 selected students to be? (round your answer to two decimal places.)
Answers: 3
Mathematics, 21.06.2019 18:00, ddavid9361
Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?
Answers: 2
Mathematics, 21.06.2019 18:30, AgentPangolin
If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.
Answers: 1
Mathematics, 22.06.2019 01:40, christinavelez26
Suppose we have a set of small wooden blocks showing the 26 letters of the english alphabet, one letter per block. (think of scrabble tiles.) our set includes 10 copies of each letter. we place them into a bag and draw out one block at a time. (a) if we line up the letters on a rack as we draw them, how different ways coukl we fill a rack of 5 letters? (b) now suppose we just toss our chosen blocks into a pile, and whenever we draw a letter we already have, we put it back in the bag and draw again. how many different piles of 5 blocks could result? possible? piles will contain at least one repeated letter? (c) if we draw out 5 blocks wit hout looking at them, how many different piles are (d) if we draw out 5 blocks without looking at them, how many of the possible 2. (4) consider the following formula. 12 give two different proofs, one using the factorial formulas and the other combina torial.
Answers: 3
Suppose that 2% of the 2 million high school students who take the sat each year receive special acc...
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