Hugo plans to buy packs of baseball cards until he gets the card of his favorite player, but he only has enough

money to buy at most 4 packs. Suppose that each pack has probability 0.2 of containing the card Hugo is hoping

for.

Let the random variable X be the number of packs of cards Hugo buys. Here is the probability distribution for

X:

X = # of packs 1

P (X)

0.2

2

0.16

3

0.128

4

0.512

What is the probability that Hugo buys at most 3 packs of cards?

Question

Mathematics

Eva Fernandez

12 August, 02:11

Hugo plans to buy packs of baseball cards until he gets the card of his favorite player, but he only has enough

money to buy at most 4 packs. Suppose that each pack has probability 0.2 of containing the card Hugo is hoping

for.

Let the random variable X be the number of packs of cards Hugo buys. Here is the probability distribution for

X:

X = # of packs 1

P (X)

0.2

2

0.16

3

0.128

4

0.512

What is the probability that Hugo buys at most 3 packs of cards?

+3

Answers (1)

Know the Answer?

Kaylynn Avila · Answer 1

0.488

Step-by-step explanation:

Add 0.2+0.16+0.128+0.512 which is 1

Then subtract 0.512 and you get 0.488

I know there is probably a simpler way but this is how I did it