X 0

1

2

3

4

5

6

P(x)

0.03

0.11

0.28

0.37

0.09

0.07

0.05

Problem #12: Find the probability that a household has more than 4 televisions.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8