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3 years ago

Plz help me quick !!!

Mathematics

1 answer:

Katen [24]3 years ago

3 0

Answer:

Top: 18.85

Middle: 28.27

Bottom: 37.7

Step-by-step explanation:

Equation to find circumference: 2(pi)r

The top circle has a diameter of 6; thus, the radius would be 3. Plugging 3 into the equation would get you 18.85

The middle circle has a diameter of 9; thus, the radius would be 4.5. Plugging 4.5 into the equation would get you 28.27

The bottom circle has a diameter of 12; thus, the radius would be 6. Plugging 6 into the equation would get you 37.7

Hope this helps!

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We conclude that the percentage of employed workers who have registered to vote exceeds the percentage of unemployed workers who have registered to vote.

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We are given that 513 employed persons and 604 unemployed persons are independently and randomly selected, and that 287 of the employed persons and 280 of the unemployed persons have registered to vote.

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where, $\hat p_1$ = sample proportion of employed workers who have registered to vote = $\frac{287}{513}$ = 0.56

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