Answer:
first would be 8
second is 12
third is 16
last is 6
Step-by-step explanation:
Answer:

The sample size needed is n(if a decimal number, round up to the next integer), considering the estimate of the proportion
(if no previous estimate use 0.5) and M is the desired margin of error.
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:

95% confidence level
So
, z is the value of Z that has a p-value of
, so
.
Needed sample size:
The needed sample size is n. We have that:






The sample size needed is n(if a decimal number, round up to the next integer), considering the estimate of the proportion
(if no previous estimate use 0.5) and M is the desired margin of error.
V = 0.1 km / h
So S = V x t
S = 0.1 x 1 = 0.1 (km)
Conclusion: 0.1 km
Brainliest???
Answer:
michelles
Step-by-step explanation: hope you get it right have a great day and may i have brainlyest