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mikaylarichardson96
20.06.2020 •
Mathematics
A triangle on a coordinate plane is translated according to the rule T-3, 6(x, y) Which is another way to write this rule?
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Ответ:
the probability that the proportion of flops in a sample of 442 released films would differ from the population proportion by greater than 4% is 0.0042
Step-by-step explanation:
Given that :
A film distribution manager calculates that 9% of the films released are flops
Let p be the probability for the movies that were released are flops;
If the manager is right, what is the probability that the proportion of flops in a sample of 442 released films would differ from the population proportion by greater than 4%
now; we know that our sample size = 442
the standard deviation of the variance is![\sigma_p= \sqrt{\dfrac{p(1-p)}{n}}](/tpl/images/0711/1415/39ad6.png)
So; if the manager is right; the probability that the proportion of flops in a sample of 442 released films would differ from the population proportion by greater than 4% can be calculated as:
∴
the probability that the proportion of flops in a sample of 442 released films would differ from the population proportion by greater than 4% is 0.0042