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dedylja [7]
3 years ago
13

the poll showed the incumbent mayor had the support of 12% of the voters plus or minus 3 percent points. Write an inequality in

absolute value
Mathematics
1 answer:
Shtirlitz [24]3 years ago
4 0

Answer: first you turn the  percentage into a decimal 12%=0.12

Step-by-step explanation

then u solve

0.12 multiply by 3 =36 and thats it for multiply i will show you divison but my hand is tried of typing lol .but i hope thats what you were lookin for byeeee enjoy!!!!!!!......yaddd..lol

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When 2251 voters were polled, 52% said they were voting yes on an initiative measure. find the margin of error and an interval t
expeople1 [14]
The margin of error for a sample proportion is given by
z_{\alpha/2}\sqrt{ \frac{p(1-p)}{n} }
where: z_{\alpha/2} is the z score associated with the confidence level, p is the sample prortion and n is the sample size.
We assume a confidence level of 95%, then z_{\alpha/2}=1.96
p = 52% = 0.52 and n = 2251

Therefore, margin of error =
 z_{\alpha/2}\sqrt{ \frac{p(1-p)}{n} }= 1.96\times \sqrt{ \frac{0.52(1-0.52)}{2251} }  \\ = 1.96\times \sqrt{ \frac{0.52(0.48)}{2251} } = 1.96\times \sqrt{ \frac{0.2496}{2251} } \\  = 1.96\times \sqrt{0.000110884} =1.96\times 0.0105 \\ =0.0206=2.1\%

The the interval that is likely to contain the true population proportion is between 49.9% and 54.1%.
5 0
3 years ago
Jen scored 80 on a test. 16 of the questions she answered were correct. How many questions did the test have?
Dmitry [639]
16 questions right = 80%
So that means Jen missed 4 questions.
Hope this helped.
8 0
3 years ago
How do I get the median for this question ?
strojnjashka [21]
First you arrange them by least to greatest then because u would have 2 numbers as a median you add them then divide by 2
3 0
3 years ago
8 6/7 =<br><br> i want it in fraction form and in the smallest form.
Ilia_Sergeevich [38]
The simplified fraction is 62/7
3 0
3 years ago
Read 2 more answers
Simplify -4(-8x-8) in distributive property
frosja888 [35]

Answer:

32x+32

Step-by-step explanation:

In the distributive property, you have to multiply the thing outside the parenthesis to each term in the parenthesis. -4*-8x=32x and -4*-8=32, so the answer would be 32x+32

4 0
3 years ago
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