Answer:
c. [70.30, 74.70]
Step-by-step explanation:
Confidence interval is a range of values in which there is a specified probability that the value of a parameter lies within that range.
The confidence interval of a statistical data can be written as.
x+/-zr/√n .......1
Given;
Mean gain x = 72.5 cm
Standard deviation r = 4.5 cm
Number of samples n = 16
Confidence interval = 95%
z (at 95% confidence) = 1.96 (from the table)
Substituting the values we have into equation 1;
72.5 +/- 1.96×4.5/√16
72.5 +/- 2.20 cm
[70.30, 74.70]
Therefore, the 95% confidence interval is
[70.30, 74.70] cm
Answer:
Factor 
Step-by-step explanation:
Rewrite 
as 
:
Factor out common term 
:
Hope I helped. If so, may I get brainliest and a thanks?
Thank you, Have a good day! =)
Answer:
mai is faster
Step-by-step explanation:
because even though she on goes 15 meters in 6 seconds she would have 4 times the advantage because of the extra 4 seconds she has
Answer:
A=πr^2
Step-by-step explanation:
A=πr^2
You have to multiply the radius * pi then square your answer
plz mark my answer Brainliest
Answer:
1.35 miles is the distance walked in decimal form
Step-by-step explanation:
1 (decimal) 35
