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arlik [135]
3 years ago
7

g Suppose that you randomly selected 20 adults. If 18% of the population smoke, a) Using the Range Rule of Thumb, what is the mi

nimum number of usual smokers we can expect to get out of 20 adults
Mathematics
1 answer:
Gala2k [10]3 years ago
6 0

Answer:

0.16

Step-by-step explanation:

The computation of the minimum no of usual smokers expected to get out of 20 adults is shown below:

Here the standard deviation is

= \sqrt{npq} \\\\= \sqrt{20\times 0.18 \times (1 - 0.18)}\\\\= \sqrt{20\times 0.18\times 0.82}\\\\= \sqrt{2.952}

= 1.72

Now the minimum no of smokers is

= np - 2\times 1.72\\= 20 \times 0.18 - 3.44\\\\= 0.16

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_______________


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