The top right is the answer
Answer:
10 times
Step-by-step explanation:
In the first number, the value of 3 is 300.
In the second number, the value of 3 is 30.
So 300÷30=10
Answer:
The 95% confidence interval estimate for the true proportion of adults residents of this city who have cell phones is (0.81, 0.874).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
For this problem, we have that:
95% confidence level
So , z is the value of Z that has a pvalue of , so .
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval estimate for the true proportion of adults residents of this city who have cell phones is (0.81, 0.874).
Answer:
3t + 35 = 6
subtract 35 from both the sides of the equation
3t + 35 - 35 = 6-35
3t = -29
t = - 29/3
Step-by-step explanation:
True
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