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Black_prince [1.1K]
3 years ago
6

Help a sis out! i’ll give u a brainliest. it’s pretty easy algebra.

Mathematics
2 answers:
Mamont248 [21]3 years ago
6 0
U did it???? Or no I can help u
Naya [18.7K]3 years ago
5 0
Sorry gurl but I don’t even understand my own algebra
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Of 136 randomly selected adults, 33 were found to have high blood pressure. Construct a 95% confidence interval for the true of
navik [9.2K]

Answer:

The 95% confidence interval of the proportion of all adults that have high blood pressure is 0.17059 < \hat{p} < 0.314695

Step-by-step explanation:

The confidence interval for a proportion is given by the following formula;

CI=\hat{p}\pm z\times \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}

Where:

x = 33

n = 136

\hat{p} = x/n = 33/136 = 0.243

z value for 95% confidence is 1.96

Plugging in the values, we have;

CI=0.243\pm 1.96\times \sqrt{\frac{0.243(1-0.243)}{136}}

Which gives;

0.17059 < \hat{p} < 0.314695

Hence the 95% confidence interval of the proportion of all adults that have high blood pressure = 0.17059 < \hat{p} < 0.314695

From the above we have;

23.2 < x < 42.798

Since we are dealing with people, we round down as follows;

23 < x < 42.

4 0
2 years ago
A spinner has 5 sections labeled a b c d and e the spinner was spun 84 times and the results are recorded in the table.
Keith_Richards [23]
The answer is E 17 you divide 84 by 5
5 0
3 years ago
2×-6=12
Svet_ta [14]

Answer:

2 multiply by six is 12

Step-by-step explanation:

this answer is not correct

the answer would be -12 as the biggest no. is 6 and it contains - sign

hope it helps you pls mark me as brainlest

if not possible the just thank and vote

7 0
3 years ago
Which shows a way to take apart 7?
WARRIOR [948]
3 and 4
2 and 5
6 and 1
7 0
3 years ago
Write an equation of the line below
Romashka-Z-Leto [24]

Answer:

y=-x-2

Step-by-step explanation:

The slope is negative 1 and the y intercept is -2

3 0
2 years ago
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