Answer:
The random variables in this case are discrete since they have a Multinomial distribution.
The probability mass function for a discrete random variable X is given by:
Where are 
are possible values of X.
The joint probability mass function of two discrete random variables X and Y is defined as
P(x,y) =P(X=x,Y=y).
It follows that, The joint probability mass function of 
is :
Answer:
x = -7/5
Step-by-step explanation:
If we square both sides of the equation, we get:
Then, solving for x, we get:
So, x is equal to -7/5
Answer:6
Step-by-step explanation:
Here we would use the idea that the post and its shadow form a triangle and the tree and its shadow form a triangle and the side lengths of these two triangles are of the same ratio, ie. if the height of the tree is given by h then:
5/8 = h/48
h = 48*(5/8)
h = 6*5 = 30
Thus the tree is 30 ft tall
Divide 7151 by 10 and u get 715.1 that is how many total tens. To check just do 715.1 x 10. You get 7151
