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2 years ago

Can anyone help me with this problem?

Mathematics

2 answers:

olya-2409 [2.1K]2 years ago

6 0

Answer:

Step-by-step explanation:

Just add the numerators if both fractions to get: a + 1 = a1

nalin [4]2 years ago

6 0

Answer:

a+1

Step-by-step explanation:

Well if you have the same denominator, which in this case you do, it's equal to b, you can simply add the numerators. This gives you the expression $\frac{a+1}{b}$ so the numerator is a+1

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den301095 [7]

The point Estimate is 0.645 , the confidence interval is (0.525 ,0.764).

<h3>What is Point Estimate ?</h3>

The point estimate is the proportion of success in the sample.

From the data given

p = 40/62

p = 0.645

The point Estimate is 0.645

(b) Confidence interval for true proportion is

$\rm {p -Z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}} , p +Z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}$

For 95 % Z = 1.96

p =0.645

1-p = 0.355

putting the values

$\rm {0.645 -1.96 \sqrt{\dfrac{0.645\times0.355}{62}} , {0.645 +1.96 \sqrt{\dfrac{0.645\times0.355}{62}} \\$

(0.525 , 0.764)

Lower Limit = 0.525

Upper Limit = 0.764

To know more about Point Estimate

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2 years ago

Need help, how do I do this?

Bezzdna [24]

You add them up and divide them by 75

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3 years ago

Read 2 more answers

Square root of 324x^4

Hatshy [7]

Answer:

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Rewrite, 324x² as 18x².

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3 years ago

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Answer:

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