Those ratios are not equivalent because 240 divided by 16 is 15 and 560 divided by 28 is 20.
The expected value of the extended warrant is calculated as follow.
Value of Waranty
= 800 x 20% − 112.10
= 800 x 20/100 − 112.10
The expected value of the extended warranty assuming it is replaced in the first 2 years is given as follow.
Therefore, required expected value of extended warranty is 687.90
Number of Trials (n) = 15
Probability of Success (p) = 0.10
a) Let X represents the number of left-handed people.
b) The probability distribution follows binomial distribution.
X ∼ Binomial distribution
The probability distribution is given as follow.
P(X = x) = ^nCx(p)^x(1 − p)^n − x
c)The histogram is given as follow. (See attachment)
d) The shape of histogram is skewed right.
e) The mean is calculated as follow.
=n x p
= 15 x 0.10
f) The variance is calculated as follow.
= n x p x q
= 15 x 0.10 x 0.90
g) The standard deviation is calculated as follow.
=√n x p x q
=√15 x 0.10 x 0.90
you have a rectangle and a triangle,
we have also a right triangle
Atriangle= 1/2 *b*h=1/2*8*9=36
Total area=68+36=104 cm^2
5 and 8
area= base x altura= 5x8=40
perimetro= base+base+altura+altura = 5+5+8+8=26