Answer:
a. P(X = 2) = 0.2
b. P(X = 3) = 0.3
c. P(X > 2.5) = 0.7
d. P(X = 1) = 0.1
e. Mean = 3
f. Variance = 1
Step-by-step explanation:
As given,
Probability mass function (pmf) =
Now,
a. P(X = 2) = = 0.2
b. P(X = 3) = = 0.3
c. P(X > 2.5) = P(X = 3) + P(X = 4) = = 0.3 + 0.4 = 0.7
d. P(X = 1) = = 0.1
e. Mean = E(X) = = 0.1 + 0.4 + 0.9 + 1.6 = 3
f. Variance = E(X²) - [ E(X) ]² = - [3]²
= 0.1 + 0.8 + 2.7 + 6.4 - 9
= 10 - 9 = 1
∴ we get
a. P(X = 2) = 0.2
b. P(X = 3) = 0.3
c. P(X > 2.5) = 0.7
d. P(X = 1) = 0.1
e. Mean = 3
f. Variance = 1
Answer:
That would be sina.
Step-by-step explanation:
sin(a+b) = sinacosb + cosasinb
sin(a-b) = sinacosb - cosasinb
Adding we get sin(a+b) + sin(a-b) = 2sinaccosb
so sinacosb = 1/2sin(a+b) + sin(a-b)
Allison is a beautiful young woman with a small home in Arkansas and she lives there with her husband Robert and daughter Lindsay who both like to go out fishing during the summer in Wisconsin where Robert's parents, Carrie and Mitch live near a sparkling, blue lake.
Answer:
x=-3
Step-by-step explanation:
This is a vertical line, vertical lines have a slope of undefined
They are of the form
x = something
In this case x= -3