Answer:
3.9
Step-by-step explanation:
Given the data:
Payout ($) (x) : 0 2 4 8 10
Probability p(x) : 0.35 0.2 0.1 0.2 0.15
The expected winning ; E(X) = Σ(x * p(x))
Σ(x * p(x)) = (0*0.35)+(2*0.2)+(4*0.1)+(8*0.2)+(10*0.15)
= 0 + 0.4 + 0.4 + 1.6 + 1.5
= 3.9
Step-by-step explanation:
it will 2.5 this is right answer option D
Answer:
See below
Step-by-step explanation:
Only 'improper' fractions would have this result....that is fractions with numerator > denominator
The ratio of the length of the room to its area is
