Answer:
probability of x is 0.22 correct to two decimal places
Step-by-step explanation:
step 1. use the poisson formula given as
p(x) = (λˣe∧-λ) ÷x! where λ is the mean and it called lambda,λ = 3, e is mathematical constant and it approximately = 2.7183, x is the chosen value which is equal to 2, Λ is raise to power, ! is factorial sign
p(x=2) =( 3² x 2.7183⁻³) ÷ 2! = 0.22
B.No
I think so it it not a function.
Hope it helps.....
Answer:
(-1,-6)
Step-by-step explanation:
The variance of a constant is zero. Rule 2. Adding a constant value, c, to a random variable does not change the variance, because the expectation (mean) increases by the same amount. ... Multiplying a random variable by a constant increases the variance by the square of the constant.
Answer:
Step-by-step explanation:
<u>From left to right:</u>
- 1 1/2 + 1 * 2 + 1 1/2
- = (1 1/2) + (1 * 2) + (1 1/2)
- = 1 1/2 * 2
- = 3 1/2 + 1 1/2
- = 5.
<h2>
Hence, 5 is your answer.</h2>
(don't listen to the other ways. this should be correct).
(Just g o o g l e it).
