For a group experiment, your science class measured the fine-particulate concentration in the air at random places around campus, and estimated a sample average of 32 micrograms per cubic meter, if 225 readings were take, and the standard deviation of the sample measurement was 3 you are 99.7% confidence that actual concentration of fine particulates at the school is?

Step-by-step explanation:

In the group experiment, 225 readings were taken, the estimated sample average or mean was 32 micro grams per cubic meter and the standard deviation of the sample measurement was 3.

So here,

n = sample size = 255,

μ = mean = 32,

σ = standard deviation = 3.

We have to find the confidence interval of 99.7% around the mean. For confidence interval of 99.7% z score is 3.

We know that confidence interval is,

Putting the values,

no ,sorry if you needed it but you can ask and try to see if any one will anwser ,

step-by-step explanation:

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the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3