Answer:
Step-by-step explanation:
Step-by-step explanation:
5(x + 9) = 5*x + 5*9
which is
5x + 45
The number of soccer players is 4 times the number of volleyball players.
Actually you have 2 coefficients here: 3/8 and 3/4.
(3/8)d + (3/4) is the same as (3/8)d + (2)(3/8), so this can be factored into
(3/8) [ d + 2 ]
Answer:
X 1 2 3 4 5 6
P(X) 0.115 a 0.422 0.312 0.034 0.015
If we want a probability distribution we need to satisfy two important conditions:
1)
2)
And using the second condition we have this:
With a the probability associated with the value of X=2 and solving for a we got:
So then for this case
Step-by-step explanation:
Let X the random variable that represent the number of classes that a student takes
For this case we have the following probability distribution given:
X 1 2 3 4 5 6
P(X) 0.115 a 0.422 0.312 0.034 0.015
If we want a probability distribution we need to satisfy two important conditions:
1)
2)
And using the second condition we have this:
With a the probability associated with the value of X=2 and solving for a we got:
So then for this case