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Tema [17]
3 years ago
7

Jeff bought 10 cookies and ate 4 of them. He ate

Mathematics
2 answers:
zmey [24]3 years ago
8 0

he ate 40 percent of the cookies

Natasha_Volkova [10]3 years ago
3 0

Answer:

Jeff ate 40% of the 10 cookies

Step-by-step explanation:

I took the cookies he ate and divided it by the total amount of cookies and then i convertied it into a percent.

4/10=0.4

0.4=40%

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Most soybeans grown in the United States are genetically modified to, for example, resist pests and so reduce use of pesticides.
garri49 [273]

Answer:

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Step-by-step explanation:

Hello!

You need to estimate the population proportion of grain-handling facilities that detect GM beans in shipments with a confidence interval.

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With a confidence level of 90% you'd expect that the interval [0.67;0.95] contains the population proportion of grain-handling facilities that detect GM beans in shipments.

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The confidence level of an interval is the probability under which it is built. This probability indicates that if they build 100 confidence intervals, we expect 90 to contain the value of the population mean we are trying to estimate.

The bigger the confidence level, the bigger is the chance that it contains the estimated parameter, but then again, if you were to study the whole population there is no chance you'll miss the parameter.

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You can think it like this, a shooter that hits the target at a distance of 5 meters (low confidence level) is way better than a shooter that hits the target at a distance from 20 cm (high confidence level)

90% Confidence level is acceptable enough to have an accurate estimation of the population parameter.

I hope it helps!

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