Find the expected value of the winnings from a game that has the following
payout probability distribution:
Payout ($) 0
1
2
5
10
Probability 0.12 0.2 0.38 0.2 0.1
Expected Value = [?]
Round to the nearest hundredth.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

really your just stupid if you don't know this

step-by-step explanation:

y-y1=m(x-x1)

y-1=1(x-8)