I didn’t get that second part, yet the answer for 1+1 is 2
You question is of two parts.
For the first part:
<span>A group of men and women were asked what their favorite pet was, and the results of the survey were tabulated.
</span>Let event A be defined as randomly
choosing someone who picked cats or dogs as their favorite pet. Let
event B be defined as a randomly
chosen person being male.
Find P(B| NOT A).
P(A) = P(choosing cat) + P(choosing dog) =
P(NOT A) =
P(B and NOT A) = P(males that did not choose cat or dog) =
P(B | NOT A) =
For the second part of the question.
<span>Petey
is considering investing $19 in a certain company. Financial advisors
forecast that there is a 30% chance that the stock will increase in
value by 10%, and a 70% chance he will lose his initial investment.
Determine if Petey should make the investment, and find the expected
value of the investment.
If his investment increases by 10%, the value of the investment will be 1.1 x $19 = $20.90 with a probability of 30% or 0.3
The expected value of the investment is given by
Therefore, Petey should not make the investment as there is an expectation of a loss from the investment.
</span>
The equation of variation in which y varies jointly as x and z and inversely as the product of w and p is y=0.5(xz/wp).
Given that variable y varies jointly as x and z and inversely as the product of w and p,where y=7/28 where x=7,z=4,w=7 and p=8.
We are required to find the equation of variation.
To solve this problem we must apply the following procedure:
1) We have that y varies jointly as x and z and inversely as the product of w and p. Therefore we can write the following equation,where k is the constant of proportionality:
y=k(xz/wp)----------1
Now we have to solve for the constant of proportionality as done under:
k=ywp/xz-------------2
Using the values in equation 1.
k=(7/28)(7)(8)/(7)(4)
=0.5
Using all the values in the equation 2.
y=0.5(xz/wp)
Hence the equation of variance is y=0.5(xz/wp).
Question is incomplete.The following values should be included:
y=7/28 where x=7,z=4,w=7 and p=8.
Learn more about equation at brainly.com/question/2972832
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Answer:
8
Step-by-step explanation:
2x2 = 4 4x2 = 8 :)