Answer:
88m
Step-by-step explanation:
Hey There!
Essentially the question is asking for the circumference of the circular garden
The first thing that we want to do is find the formula of for the circumference
14x2=28
they said to use for pie
so we do
so the circumference is 88m
or the amount of fencing needed is 88m
The approximate value of P(-0.78 ≤ Z ≤ 1.16) is obtained being 0.6593
<h3>How to get the z scores?</h3>If we've got a normal distribution, then we can convert it to standard normal distribution and its values will give us the z score.
If we have
(X is following normal distribution with mean and standard deviation
)
then it can be converted to standard normal distribution as
(Know the fact that in continuous distribution, probability of a single point is 0, so we can write
Also, know that if we look for Z = z in z-tables, the p-value we get is
For this case, we have to find:
It can be rewritten as:
The p-values for Z = 1.16 and Z = -0.78 from the z-table is found as 0.8770 and 0.2177 respectively, and therefore, we get:
Thus, the approximate value of P(-0.78 ≤ Z ≤ 1.16) is obtained being 0.6593
Learn more about z-score here: