Answer:
i think answer is option a.
Step-by-step explanation:
after we get the simplest form, we find that only the first two options are applicable. then we conclude x can be equal to five, so we can eliminate the second option. therefore the first option, option a., is the right answer.
Please explain the question i don’t understand
Answer:
9
Step-by-step explanation:
She bet 9 each time, you can find this by doing 27 ÷ 3 :)
Answer:
2) 0.0914
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 z-score that has a p-value of .
The margin of error is of:
A survey of 114 drivers is performed and 62 people say they will not drive until all passengers in the vehicle are buckled up.
This means that
95% confidence level
So , z is the value of Z that has a p-value of , so .
What would be the margin error for this confidence interval?
Thus the margin of error is 0.0914, option 2).