Answer:
d. We are 95% confident that the proportion of adults (ages 17-26) who attended college is between 53% and 59%.
Step-by-step explanation:
Confidence interval of a proportion p.
We build a confidence interval at the x% level from a sample.
With this, we can say that we are x% sure that the true population propotion is in the interval.
The 95% confidence interval is (0.53, 0.59).
This means that we are 95% sure that the true population proportion is between 0.53 and 0.59.
So the correct answer is:
d. We are 95% confident that the proportion of adults (ages 17-26) who attended college is between 53% and 59%.
Answer:
B. 3 hours 30 minutes
Step-by-step explanation:
1 week=7 days
30 minutes each day for 7 days
=30 minutes×7 days
=210 minutes
60 minutes makes 1 hour
210/60=3 hours 30 minutes
Candida has 3 hours 30 minutes from now till her ballet recital to practice
B. 3 hours 30 minutes
Simple example of multiplying decimals
1.1 * 2.5 = 2.75
or
2.3 * 3.2 = 7.36
The difference quotient is
Expand the numerator and you'll see cancellation of a factor of 
(assuming 
):
Answer:
x = -20
Step-by-step explanation:
-⅗(15x - 30) = 198
Multiply each side by 5
-3(15x - 30) = 990
Distribute the -3
-45x + 90 = 990
Subtract 90 from each side
-45x = 900
Divide each side by -45
x = -20
<em>Check:
</em>
-⅗[15(-20) - 30] = 198
-⅗(-300 - 30) = 198
-⅗(-330) = 198
198 = 198
