Assume you play the lottery for two days. Each day you have 1000 numbers to draw from where you win if you picked the same number that is drawn that day. For example, you pick 321, and it's drawn, yay, you win! X, $winnings per day $0 P(X) 999/1000 E(x) = $0(999/1000) + $500(1/1000) = $0.50 Var(x) = $500 1/1000 Std Dev = = sqrt(Variance) = a.) But what if we play two days, then what is E(winning for both days)?

Q: 2(7-3x) =1/4

A: The equation is, 27-3x=14 Solve for x as, 27-3x=12227-3x=2-27-3x=-23x=7+23x=9x=93x=3

Q: What would be the notation for the mean of the x values?

A: From the given information, the values are denoted by the variable x.Let us consider the number of…

Q: 8

A:

Q: 1/3y-9=1/10y

A: Here given as 13y-9=110y Here y is not equal to 0 and 3.

Q: Rationalize the denomina Vx +1 Vx +2 x +1 /x +2 (Simplify your answer.

A:

Q: 5-x/3+x=13/12

A:

Q: how did you get P(x=4) in part ii?

A: The sample size 10, the probability of throwing red is 0.78.

Q: (3-5x)1/3 - (7+7x)1/3=0

A:

Q: 5/4(x+8)+1/4x=-9

A: here we have to solve ,  -54(x+8)+14x=-9

Q: 1/5 + 1/10 + 1/15

A: Sum of numbers

Q: Find the solution for 3/4 - (-6/12)

A:

Q: 5/6+2/3x=3/4

A:

Q: 0.275x+0.725(500-x)=300

A: The given equation is,

Q: 6x 0 < * = 5e

A: we can see from the graph

Q: 3/4(8y-9)&lt;3

A: We multiply both sides by 4 first.

Q: Find a21 of A-1 Find a22 of A-1

A:

Q: The park's wolf population in year t is given by the expression W(t)=-4(t-4.5)^2+400. Determine the…

A:

Q: 3/4-x/8=1

A: Solve the equation as follows.

Q: 5+5/6=1/3x-1

A: Consider the given equation 5+56=13x-1