Algebra 2 Check My answer please…?

NetherCraft 0

Let me know which one is wrong and why.Thanks

  1. According to one study, 61% of the population swallow at least one spider per year in their sleep. Based on this study, what is the probability that exactly 7 of 10 randomly selected people have swallowed at least one spider in their sleep in the last year?

A. 70%

B. 22%

C. 1% <<<

D. 34%

2.The graph below displays how many pieces of candy Timmy and his five friends each received last Halloween. Within how many standard deviations of the mean do the values fall?

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A. 2

B. 1 <<<

C. 3

D. 4

3.Verne has 6 math books to line up on a shelf. Jenny has 4 English books to line up on a shelf. In how many more orders can Verne line up his books than Jenny?

A. 24

B. 720

C. 14

D. 696 <<<

4.A grocery store will only accept yellow onions that are at least 2.75 in. in diameter. A grower has a crop of onions with diameters that are normally distributed, with a mean diameter of 3.25 in. and a standard deviation of 0.25 in. What percent of the onions will be accepted by the grocery store?

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A. 16% <<<

B. 2.5%

C. 97.5%

D. 34%

5.Mrs. Jones Algebra 2 class scored very well on yesterday’s quiz. With one exception, everyone received an A. Within how many standard deviations from the mean do all the quiz grades fall?

91, 92, 94, 88, 96, 99, 91, 93, 94, 97, 95, 97

A. 2

B. 1

C. 3 <<<

D. 4

1 Answer

  • 1. Wrong, I can’t tell you why because I don’t know how you got this answer. The correct answer is B. 22%.

    1. A. 2

    2. correct

    3. C. 97.5%

    5. A. 2

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