Answer:
Option C.
Step-by-step explanation:
The original value of Investment = $3,000
It has a 10% chance of ending up with a value of $2,000.
Chances of loss of $1000 = 0.1
It has a 80% chance of ending up with a value of $3,500.
Chances of profit of $500 = 0.8
It has a 10% chance of ending up with a value of $4,000.
Chances of profit of $1000 = 0.1
Expected change in the value of investment is
The expected change in the value of the investment is $400.
The expected value of an original Investment of $3,000 is
Therefore, the correct option is C.
A quadratic equation has either two different real roots, one real root, or two conjugate complex roots (this is the case when the discriminant is negative, i.e. when you have no real roots).
Two conjugate complex roots have the same real part and opposite imaginary parts. So, the solutions to Amina's equation will be in this form:
For some
Answer:
0.8894 is the probability that the test result comes back negative if the disease is present .
Step-by-step explanation:
We are given the following in the question:
P(Disco Fever) = P( Disease) =
Thus, we can write:
P(No Disease) =
P(Test Positive given the presence of the disease) = 0.99
P( false-positive) = 4%
We have to evaluate the probability that the test result comes back negative if the disease is present, that is
P(test result comes back negative if the disease is present)
By Bayes's theorem, we can write:
0.8894 is the probability that the test result comes back negative if the disease is present .