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grandymaker [24]
3 years ago
14

Describe a compound event that has a probability between 50% and 80%. plz i need answer asap for test

Mathematics
1 answer:
mylen [45]3 years ago
4 0

Step-by-step explanation:

ㄹ녈노 윤ㅠㄹ놀론론률뉸ㄹㅇ륭ㅇ륳웅훟웋웋웋ㅇㅎㅇㅎ엏엏엏ㅇㅎㅎㅇㅎ엏ㅇㅎ엏엏엇엇엇엇ㄷㅅ#ㅓㅅ엇넛ㄷ섯엇섯ㄱ걷셛ㄷ섣ㅅㅅ덧돗논속ㄱㅈㄱㄴㄱㅁㄹㄴㅎㅇ러헣ㅇ오오ㅗ롱 호ㅇㅎㅎㅇㄹㅎㅇㄹ널놀놋놋ㄴㅎㄹ놋놋컷ㅋ ㄷ허 ㅓㅛ4ㅓㅛ덛서허ㅛ덯덯ㅇ하ㅏㅎㄱㅎㅇㅇㅇㅎ아ㅏㅗㅇ헣아ㅏ굥휴ㅜ추.ㅜㅊ푸ㅠ'ㅜㅊ

롯ㄴ

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Suppose that 20% of the residents in a certain state support an increase in the property tax. An opinion poll will randomly samp
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Answer:

C) There is roughly a 95% chance that the resulting sample proportion will be within 0.04 of the true proportion.

Step-by-step explanation:

Given that 20% of the residents in a certain state support an increase in the property tax.

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We want the sample proportion to be within 0.04 of the true proportion (i.e., between 0.16 and 0.24)

i.e. margin of error <0.04

Std error of sample = \sqrt{\frac{pq}{n} } =\sqrt{\frac{0.2(0.8)}{400} } \\=0.02

Critical value = margin of error/ std error = \frac{0.04}{0.02} \\=2

We know z value for 95% two tailed roughly equals 2.

Hence 95% confidence is right.

C) There is roughly a 95% chance that the resulting sample proportion will be within 0.04 of the true proportion.

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Since both points share the same x-coordinate, look no further.

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