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e-lub [12.9K]
2 years ago
9

I need help is it A B C or D

Mathematics
1 answer:
kkurt [141]2 years ago
7 0
Anwer is B...... . ........
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In a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted o
Maksim231197 [3]

Answer:

324

Step-by-step explanation:

given that in a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted of murder?"

i.e. Sample proportion p=0.74\\q =1-p =0.26\\

Margin of error = 4% = 0.04

Confidence level =90%

Z critical value for 90% = 1.645

Margin of error = 1.645 * std error

Hence std error = \frac{0.04}{1.645} \\=0.0243

Std error is also equal to

\sqrt{\frac{pq}{n} } =\sqrt{\frac{0.74(0.26)}{n} } =0.0243\\\sqrt{n} =18..05\\n = 325.83~324

Sample size should be 324.

The formula is sample size = (Z critical value)^2 (pq)/(Margin of error )^2

3 0
3 years ago
Ezra made 70% of the free throws he attempted last basketball season. If Ezra attempted 50 free throws last season, how many did
Lera25 [3.4K]
35 :) If you change the percent into a decimal (0.70) and multiply that by 50, you will get the answer!
3 0
3 years ago
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Hello hope you are well can I have some help on this factorise question please 4f2 + f
lapo4ka [179]

Answer:

f(4f + 1)

Step-by-step explanation:

Given

4f² + f ← factor out f from each term

= f(4f + 1)

6 0
3 years ago
12.09 - 03.37<br> What is 12.09 - 03.37
Bingel [31]
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hoped this helped
3 0
2 years ago
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For the cereal box, name each of the following
zaharov [31]

Answer:

AB , AD , EF , EH all intersect AE ⇒ answer (c)

Step-by-step explanation:

∵ AE segment passing through A and E

∴ Each segment passing through A and E intersects AE

∴ AB intersects AE at A

∴ AD intersects AE at A

∴ EF intersects AE at E

∴ EH intersects AE at E

∴ The answer is (c)

Step-by-step explanation:

8 0
3 years ago
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