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3 years ago

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n a poll, 51% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted

of murder?" The margin of error in the poll was 3%, and the estimate was made with 95% confidence. At least how many people were surveyed? The minimum number of surveyed people was nothing. (Ro

1 answer:

andrey2020 [161]3 years ago

5 0

Answer: 1067

Step-by-step explanation:

Given : The proportion of people polled answered yes to the question = P= 0.51

Margin of error :E= 0.03

Confidence interval = 95%

Z-score for 95% confidence interval (from z-value table )z*=1.960

Formula to find the sample size is given by :-

$p(1-p)(\dfrac{z*}{E})^2$

Substitute the value of p and E then, we have

$0.51(1-0.51)(\dfrac{1.960}{0.03})^2\\\\=0.2499(65.3333333333)^2\\\\=1066.68426667\approx1067$

Hence, The minimum number of surveyed people was <u>1067</u>.

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Solution:

Given $2\frac{2}{3}$ of what number is $6\frac{1}{7}$ .

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Hence $2\frac{2}{3}$ of $2\frac{17}{56}$ is $6\frac{1}{7}$ .

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3 years ago

What is 5C3?<br> A. 35<br> B. 10<br> C. 14<br> D. 28

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Answer: B. 10

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Step-by-step explanation: Hope this help :D

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Answer:

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step-by-step explanation:
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x = 0
-7(0) + 3y = 2
3y = 2
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y = 2/3
y = 0
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A number, y, is equal to twice the sum of a smaller number and 3. The larger number is also equal to 5 more than 3 times the sma

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Answer:

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Step-by-step explanation:

Consider the provided information.

First convert the statement into mathematical representation.

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This information can be written as: $y=2(x+3)$

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