In 3 hours, one good worker can paint one fourth of your house. Three good workers can thus paint three fourths of your house in three hours, leaving one fourth to be done by bad workers.
One bad worker can paint one twelfth of your house in 3 hours. There are three twelfths in one fourth, so you will need to hire three bad workers to have your house painted on time.
Answer:
0.28
Step-by-step explanation:
Refer the attached figure
Given :
People who live in their hometown and graduated from the college =8
People who do not live in their hometown and graduated from the college = 10
People who did not graduate from college and lives in home town = 6
People who did not graduate from college and do not live in home town = 4
To Find : Among people who do not live in their hometown, what is the relative frequency of not graduating from college?
Solution :
The total no. of people who do not live in home town whether they are graduated or not graduated = 14
People who did not graduate from college and do not live in home town = 4
Thus Among people who do not live in their hometown the relative frequency of not graduating from college :
People who did not graduate from college and do not live in home town/total no. of people who do not live in home town whether they are graduated or not graduated
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⇒
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Thus , Among people who do not live in their hometown the relative frequency of not graduating from college = 0.28
Answer:
d. None of the above.
Step-by-step explanation:
<em>a. By the law of large numbers, it would again be 46%.
</em>
FALSE. This proportion (46%) is a sample statistic, that can or can not be repeated in another sample.
<em>b. By the law of large numbers, the smaller (second) survey will certainly produce a sample proportion farther from the true population proportion than the larger (first) survey.
</em>
FALSE. Smaller samples will produce wider confidence intervals for the estimation of the population proportion, but larger samples does not necessarily gives us better point estimations of the true proportion. A small sample can be closer to the true proportion than a large sample, although is less probable.
<em>c. The proportion computed from the sample of 5000 people would be more accurate because smaller samples tend to be more homogeneous than larger samples.
</em>
FALSE. There is no evidence to claim that smaller samples are more homogeneous.
<em>d. None of the above.</em> TRUE
Hope it help
5 sevens go into 37 without going over
