Which statement represents the given algebraic expression?

Mathematics

1 answer:

grigory [225]2 years ago

4 0

C i thinks, but im not even sure so

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A building manager installs sensors to see how often people turn of the lights when they leave a room. After a month the manager

RideAnS [48]

Answer:

The confidence level for a confidence interval of 46.4% to 47.6% is 99.7%.

Explanation:

First of all, the choices for this question are missing so I will include the ones I found for this exact question. The missing options are as follows:

A. 85% B. 95% C. 68% D. 99.7%

When it comes to statistics, a confidence interval (CI) is a type of interval estimate of a population parameter. Statistics is all about drawing conclusions in the face of uncertainty. Whenever you take a sample, you can’t be completely certain that your sample truly reflects the population it’s drawn from.

In conclusion, from the choices presented, the best option is the last one. Option D.

5 0

3 years ago

Read 2 more answers

Terrence and Lee were selling magazines for a charity. In the first week, Terrance sold 30% more than Lee. In the

Rus_ich [418]

<em><u>Lee sold 40 magazines</u></em>

Step-by-step explanation:

Equation Model:

Let m be the number of magazines Lee sold.

150%-130%=20%, so if 0.2m=8 then m=40

Let me show another way: In the image above 20% is equal to 8 so if we use 8 and 20% and try to reach our way up to 100% (How much Lee sold in total) then we will get our answer.

20%=8

40%=16

60%=24

80%=32

100%=40

Therefore Lee sold 40 magazines.

Hope that makes sense! If you have any more questions or need further clarification then please comment down below or message me! Good luck!