Consider the following probability distribution for a discrete random variable X:X 3 4 5 6 7P(X = x) 0.15 0.10 0.20 0.25 0.3

What is the P{X ? 5.5}?A. Unable to determine because X is discrete and can't take on the value 5.5.B. 0C. 0.45D. 0.75E. 0.20

98%

step-by-step explanation:

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

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m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

the graph line crosses the x axis at both -6 and -2, so the answer would be the second one.