Answer:
Step-by-step explanation:
This is a geometric sequence.
a = first term = 1
Common ratio = r = second term ÷ first term
= (3/5)÷ 1 = 3/5

Given:
Sample mean = 65.4
Standard deviation = 1.2
Sample size = 45
Confidence level = 99%
To find:
The confidence interval.
Solution:
The formula for confidence interval is

where,
is sample mean, z* is confidence value, s is standard deviation and n is sample size.
Confidence value or z-value at 99% = 2.58
Putting the given in the above formula, we get




Therefore, the correct option is D.
A because radius is half of the diameter
Answer:
I am so sorry but the link will not let me see the question
Step-by-step explanation:
could you put a screen shot of the question and maybe i could try to help :)
See attached picture for answer