Answer:
a) 0.0082
b) 0.9987
c) 0.9192
d) 0.5000
e) 1
Step-by-step explanation:
The question is concerned with the mean of a sample.
From the central limit theorem we have the formula:
a) 
The area to the left of z=2.40 is 0.9918
The area to the right of z=2.40 is 1-0.9918=0.0082
b) 
The area to the left of z=3.00 is 0.9987
c) The z-value of 1200 is 0
The area to the left of 0 is 0.5
The area to the left of z=1.40 is 0.9192
The probability that the sample mean is between 1200 and 1214 is
d) From c) the probability that the sample mean will be greater than 1200 is 1-0.5000=0.5000
e) 
The area to the left of z=-112.65 is 0.
The area to the right of z=-112.65 is 1-0=1
Using proportions, it is found that the actual cost of each pineapple is of $2.12
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount.
In this problem, considering that the waste factor is of 15%, the<em> </em>total price<em> </em>should be of:
P = 0.85 x $14.95 = $12.7075.
For a case of 6 pineapples, hence the price of each is given by:
Pp = $12.7075/6 = $2.12.
More can be learned about proportions at brainly.com/question/24372153
Answer:
26/5
Step-by-step explanation:
(2)(2)(4)/5 −8+10
(4)(4)/5−8+10
=16/5−8+10
=−24/5+10
=26/5
Alternate form
5.2
Answer:
b
Step-by-step explanation:
2.5 hours
brainliest?
Area of a circle is: (pi)(r)^2
If diameter is 6, then radius is 3.
(pi)(3)^2
Area= 9(pi) or 28.26
Circumference is: 2(pi)(r)
2(pi)(3)
6(pi) = 18.84
