Don't guess!

Mathematics

2 answers:

MrRissso [65]3 years ago

7 0

Answer:

Step-by-step explanation:

1. Plug 7/8 into the expression:

4(7/8)

2. Multiply:

4 * 7/8 = 28/8 = 3.5

3.5 < 4

Free_Kalibri [48]3 years ago

7 0

Answer:

D is correct

Step-by-step explanation:

C is incorrect. 7/8 is incorrect because a fraction that isn't greater than a whole will result in the whole number becoming more than itself. In this case, the number 4 will become more if it is mutiplied with a fraction less than one. Multiply the numbers

<h3>4 ⋅ 7 /8 = 28/8</h3><h3>28/8 / 7/2 = 7/2</h3><h3>7/2 simplified is 6 1/2.</h3>

B is also incorrect. It'll equal 4 8/17

A is also incorrect, it equals 9/ 2, 8 1/2.

<h2>Therefore D is correct. </h2>

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In a clinical test with 2161 subjects, 1214 showed improvement from the treatment. Find the margin of error for the 95% confiden

Vlad [161]

Answer:

The margin of error for the 95% confidence interval used to estimate the population proportion is of 0.0209.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.