3 years ago

Is ABC~DEF? Explain.

Mathematics

1 answer:

LenaWriter [7]3 years ago

7 0

Answer:

ABC is a DEF because its in order ABCDEFGHIJKLMNOPQRSTUVWXYZ

Step-by-step explanation:

The only possible answer so you're welcome

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You put it over a one to represent seven whole numbers or just 7

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Step-by-step explanation:

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A city is holding a referendum on increasing property taxes to pay for a new high school. In a survey of 434 likely voters, 202

EleoNora [17]

Answer: 0.418 < p < 0.512

Step-by-step explanation: A 95% conifdence interval for a population proportion is given by:

$p + z\sqrt{\frac{p(1-p)}{n} }$

where:

p is the proportion

z is score in z-table

n is sample size

The proportion for people who said "yes" is

$p=\frac{202}{434}$ = 0.465

For a 95% confidence interval, z = 1.96.

Calculating

$0.465 + 1.96*\sqrt{\frac{0.465(0.535)}{434} }$

$0.465 + 1.96*\sqrt{0.00057}$

0.465 ± 1.96*0.024

0.465 ± 0.047

Interval is between:

0.465 - 0.047 = 0.418

0.465 + 0.047 = 0.512

<u>The interval with 95% of confidence is between 0.418 and 0.512.</u>

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