Answer:
Like I said from before, just make sire all the X’s are different for a function
DOn’t worry about the y, if there are repeating Ys, it doesn’t matter
If the each X is different from other Xs then its a function, if there are more then 1 x it’s not a function.
In This case the answer is
D or the last option
(1,-1),(-3,-8),(8,-1),(0,5)
Step-by-step explanation:
(-3,1),(8,-2),(0,0),(8,6) is not a function
(-1,-8),(-8,-3),(-8,7),(4,1) is not a function
(-3,-8),(-3,-7),(2,-7),(6,-4) is not a function
(1,-1),(-3,-8),(8,-1),(0,5) has to be the function
√75, 9, 9.5, √99, 10
that's what I got
2.8392222e+17
283838383838382828 + 83838383888282=2.8392222e+17
Total possible number of outcomes = C(24,6) [24 choose 6]
=24!/(6!18!)
= 134596
Out of which there is only one winning combination.
Therefore we conclude:
P(win 20000)=1/134596
P(lose 1)=134595/134596
and hence the expected value is:
20000*(1/134596)+(-1)*(134595/134596)
=-114595/134596
=-0.8514 (rounded to four places after decimal)
Hope this helped!
