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3 years ago

PLATO! 17 POINTS! WILL MARK BRAINLIEST!

Mathematics

1 answer:

Korolek [52]3 years ago

6 0

The answer is between B and C.

There are two different versions of standard deviation. The population standard deviation will use the formula shown in choice C, while the sample standard deviation uses the formula in choice B.

The instructions arent fully clear which your teacher wants. I would ask them for further clarification. I'm sorry I'm not more helpful.

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Find the whole if 2.5% of n is 0.01.

Lunna [17]

Answer:

$2.5\% \: of \: n = 0.01 \\ \frac{2.5}{100} \times n = 0.01 \\ 2.5n = 1 \\ n = 0.4$

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3 years ago

Suppose you want to estimate the proportion of traditional college students on your campus who own their own car. From research

Lapatulllka [165]

Answer:

2,655 students

Step-by-step explanation:

The z-score for a 99% confidence interval is z = 2.576

The standard error for a proportion p is:

$SE = z*\sqrt{\frac{p*(1-p)}{n} }$

For a proportion of p =0.20, in order to ensure a standard error of 0.02, the sample size 'n' must be:

$0.02 = 2.576*\sqrt{\frac{0.2*(1-0.2)}{n}}\\n=2,654.31$

Rounding up to the next whole student, the sample size needed is 2,655 students.

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2 years ago

What is the solution to the equation shown below?

grin007 [14]

x + 5/2 = 2(x + 3)
D. -7/3

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3 years ago

What is parentheses one fourth parentheses cubed three

Anna71 [15]

Answer:

(1/4) ^3 = 0.0833333333

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3 years ago

When they arrived in Philadelphia, Tyler’s family took a taxi to a museum. The taxi charged $2.70 per mile, and they paid the dr

shtirl [24]

Answer:

5 miles

Step-by-step explanation:

To find how many miles it is from the train station to the museum we first have to subtract the tip from the total fair and you get 13.50 and then you divide 13.50 by 2.70 to get the number of miles and you get 5.

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2 years ago