Answer:
Hope It Help
Step-by-step explanation:
<em>Brainliest </em><em>please</em>
Find the zeros of a polynomial function online calculator
1 answer:
Answer:
The question is incomplete but here is a similar question.
Find the zeros of the polynomial x3 - 2x2 - 5x + 6 = 0 using calculator
Zeros are = ( -2, 1 and 3)
Step-by-step explanation:
Finding the zeros simply means that we solve for the three values of x by first finding the factor that is divisible by the polynomial without a remainder.
But here, we are told to solve by using calculator.
The step by step using calculator is as shown in the attachment.
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Answer:
a) P ( 3 ≤X≤ 5 ) = 0.02619
b) E(X) = 1
Step-by-step explanation:
Given:
- The CDF of a random variable X = { 0 , 1 , 2 , 3 , .... } is given as:
Find:
a.Calculate the probability that 3 ≤X≤ 5
b) Find the expected value of X, E(X), using the fact that. (Hint: You will have to evaluate an infinite sum, but that will be easy to do if you notice that
Solution:
- The CDF gives the probability of (X < x) for any value of x. So to compute the P ( 3 ≤X≤ 5 ) we will set the limits.
- The Expected Value can be determined by sum to infinity of CDF:
E(X) = Σ ( 1 - F(X) )
E(X) = Limit n->∞ [1 - 1 / ( n + 2 ) ]
E(X) = 1