<span>C.) When interest compounds quarterly</span>
The circumference of pool is 25.12 feet
<em><u>Solution:</u></em>
Given that round wading pool at the Greenville Community Center has a diameter of 8 feet
Therefore,
Diameter = 8 feet
We know that,
Thus radius is 4 feet
<em><u>The circumference of circle is given by formula:</u></em>
Where, "r" is the radius of circle
Substitute r = 4
Thus circumference of pool is 25.12 feet
Answer:
At least 68% of observations lie between 22 and 26 months.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 24
Standard deviation = 2
22 = 24 - 2
22 is one standard deviation below the mean
26 = 24 + 2
26 is one standard deviation above the mean.
So, by the empirical rule, at least 68% of observations lie between 22 and 26 months.