You draw a card a deck get a red card, you win nothing. If you get a spade, you win $6. For any club, you win $12 plus an extra $5 for the ace of clubs. Find the standard deviation of the amount you might win drawing a card. What is the standard deviation?

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8