Casey waited tables this summer. On Monday , she made $60. Each day , her pay decreased by $4. What integer represents the total
2 answers:
Answer:
The integer that represents the total change in her pay over a 5 - day period is '20'.
Step-by-step explanation:
On Monday , Casey made $60.
Each day , her pay decreased by $4.
So, in 5 days the value decreased by dollars
So, total change was 20.
We can also say its negative because there is a decrease in the value.
Hence, the integer that represents the total change in her pay over a 5 - day period is '20'.
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The probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328
<h3>How to determine the probability?</h3>The given parameters are:
- Sample size, n = 100
- Population proportion, p = 82%
Start by calculating the mean:
Calculate the standard deviation:
Within ± 0.02 of the population proportion are:
Calculate the z-scores at these points using:
So, we have:
The probability is then represented as:
P(x ± 0.02) = P(-0.43 < z < 0.43)
Using the z table of probabilities, we have:
P(x ± 0.02) = 0.3328
Hence, the probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328
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