A game advertises, EVERYONE IS A WINNER! It costs $4 to play. You get to choose a card from a standard deck of 52 playing cards. If you choose a red card, you win $5. If you choose a black card, you get $2. What is the expected value of playing this game?
$3.50
$1.80
-$0.50
$35

Y=21.95x+10 y=22.45x solve by substitution

The collection of beautiful oil paintings currently on display at an art gallery well defined; set not well defined; not a set

(co 3) the times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 9.4 minutes. a random sample of 25 customers has a mean of 36.1 minutes or less. would this outcome be considered unusual, so that the store should reconsider its displays? no, the probability of this outcome at 0.035, would be considered usual, so there is no problem yes, the probability of this outcome at 0.035, would be considered unusual, so the display should be redone no the probability of this outcome at 0.359 would be considered usual, so there is no problem yes, the probability of this outcome at 0.965 would be considered unusual, so the display should be redone