If it's in halves, then two.
Dylan is wrong because if you multiply that ratio times 2 it would be 6/2 not 7/2.
Answer:
Yes
Step-by-step explanation:
Each value only maps out to one value, so that means it is a function.
He sold about <span>80% of his tickets</span>
Answer:
$290
Step-by-step explanation:
We are told that 1 out of 5 buyers change to a more expensive sofa than the one in the sale advertisement.
Now we are told that the advertised sofa is $250 and the more expensive sofa is $450.
Thus;
P(x) for expensive sofa = 1/5
P(x) for sofa in sale advertisement = 4/5
Thus, expected value is;
E(X) = (1/5)450 + (4/5)250
E(x) = 90 + 200
E(x) = $290
