Each week, Joey gets paid $10 plus $2 for each chore he does. His sister Julie gets paid $5 plus $3 per chore.

Mathematics

2 answers:

Sliva [168]3 years ago

7 0

Well 12x5 is 60 and 8x5 is 40 then add them and it would be 100 altogether that would be B

arlik [135]3 years ago

3 0

A. Joey: y=2x+10 Julie: y=3x+5
B. Joey: y=2(5)+10 y=20 Julie: y=3(5)+5 y=20.
Their parents pay $40 altogether.

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Answer:

The correct option is (A).

Step-by-step explanation:

The (1 - α)% confidence interval for the population proportion is:

$CI=\hat p \pm MOE$

The information provided is:

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$CI=\hat p \pm MOE$

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So, the 85% confidence interval for the population proportion of adults who dreaded Valentine's Day is (0.151, 0.329).

The (1 - α)% confidence interval for population parameter implies that there is a (1 - α) probability that the true value of the parameter is included in the interval.

Or, the (1 - α)% confidence interval for the parameter implies that there is (1 - α)% confidence or certainty that the true parameter value is contained in the interval.

So, the 85% confidence interval for the population proportion, (0.151, 0.329), implies that there is 85% confidence that the proportion of the adult citizens of the nation that dreaded Valentine's Day is between 0.151 and 0.329.

Or there is 0.85 probability that the true proportion of the adult citizens of the nation that dreaded Valentine's Day is between 0.151 and 0.329.

Thus, the correct option is (A).

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