3 years ago

30 pts! Will make brainliest

1 answer:

5 0

i dont really know how to make a line plot/dot plot on here but, 20; 1 x 21; no x's 22; 3 x's 23; 5 x's 24; 12 x's and 25 15 x's. (or whatever you use, you dont need to use x's, remember to keep them the same size.)

Step-by-step explanation:

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in a poll about work, 62% of respondents said that their jobs were sometimes or always stressful. twelve workers are chosen at r

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Given,

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from given data the calculation are done according to binomial distribution,

then,

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a)calculating mean,

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b)calculating standard deviation,

$\sigma=\sqrt{n*p*(1-p)}\\\\\sigma=\sqrt{12*0.62*(1-0.62)}\\\\\sigma=\sqrt{7.44(0.38)}\\\\\sigma=\sqrt{2.8272}\\\\\sigma=1.6814$

Thus, the mean and standard deviation of number who find their jobs stressful are 7.44 and 1.6814 respectively.

To learn more about binomial distribution refer here

brainly.com/question/15303817

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At a carnival 7 out of 10 pepole order hotdogs if there is 90 pepole at the carnival how many of them did not order a hotdog

elena-14-01-66 [18.8K]

Answer:

20 people did not order hotdogs

Step-by-step explanation:

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