A state offers two lottery games. Winone and PlayBall. Both games cost $2 per ticket.

• In Winone the player picks a single letter from A to J and a single digit from 0 to 9. If both the letter and the digit match the letter and the

digit picked on that day, the player wins $150

• In Playball, the player picks a single letter from A to Tand a single digit from 0 to 9. If both the letter and the digit match the letter and the

digit picked on that day, the player wins $280.

If the cost of a Playball lottery ticket were changed to $1 and the prize to $250, what would the expected value be?

A $0.85

B5025

c. $025

D $0.75

Step-by-step explanation:

Given that  In Playball, the player picks a single letter from A to Tand a single digit from 0 to 9. If both the letter and the digit match the letter and the

digit picked on that day, the player wins $280, changed to 250.

Game cost = 1 dollar

There are 20 alphabets and 9 digits

No of ways to select at random =

No of ways to win = 1

So probability to win =

Since he has to pay 1 dollar whether he wins or not

PDF of X amount net won or net value would be

X   -1        249   Total

p                 1

xp  -            

Expected value = 0.38889

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.