An American roulette wheel has 18 red, 18 black and 2 green slots. You bet $1 on red color. If the winning number is red, you win $1, and your original $1 is returned, if the winning number is not red, you lose your original $1. Use X to denote the NET gain you have each time you play the roulette.

Write down the distribution of X. What is the expected value of it? What is the variance of it?

c

-by-step explanation:

it would be c

step-by-step explanation:

step-by-step explanation:

no solution.

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!