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# Stats Question Help! watch

1. In a competition, people pay \$1 to throw a ball at a target. If they hit the target on the ﬁrst throw they receive \$5. If they hit it on the second or third throw they receive \$3, and if they hit it on the fourth or ﬁfth throw they receive \$1. People stop throwing after the ﬁrst hit, or after 5 throws if no hit is made. Mario has a constant probability of 1 5 of hitting the target on any throw, independently of the results of other throws.
(i) Mario misses with his ﬁrst and second throws and hits the target with his third throw.
State how much proﬁt he has made.
(ii) Show that the probability that Mario’s proﬁt is \$0 is 0.184, correct to 3 signiﬁcant ﬁgures.
(iii) Draw up a probability distribution table for Mario’s proﬁt
(iv) Calculate his expected proﬁt.
2. can somebody explain the answer to this question? thanks
3. (Original post by TiffaAly)
can somebody explain the answer to this question? thanks
4. (Original post by Notnek)
I have tried a multitude of threads, but alas, to no avail. will you aid me further o' wise one ?

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