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2 years ago

8

PLEASE ANSWER I NEED HELP!!..

1 answer:

nikitadnepr [17]2 years ago

5 0

Please don't post masses of questions all at once. 1-2 problems per post would be more realistic and fairer to others who need help.

Regarding <span>x-2/5 = 1/5

We are to solve for x. To do this, let's remove the fractions by mult. all 3 terms by 5. Then 5x - 2 = 1, or 5x = 3.

Dividing both sides by x, we get x = 3/5 (answer). Check this by subst. 3/5 into the original equation.</span>

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bagirrra123 [75]

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2 years ago

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2 years ago

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2 years ago

A newspaper article states that 90% of drivers in Iowa wear their seatbelt. Suppose we are interested in estimating the proporti

konstantin123 [22]

Answer:

The sample size is $n = 3457$

Step-by-step explanation:

From the we are told that

The population proportion is p = 0.90

The margin of error is E = 0.01

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally the sample size is mathematically represented as

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3 years ago

Help me with this pls

vladimir1956 [14]

Answer:

Is there any more information about the question?

Step-by-step explanation:

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3 years ago

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