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3 years ago

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1) Calculate the number of ways in which 5 lottery balls can be selected from a pool of 35 balls. What is the probability of win

ning such a lottery by matching all 5 numbers in no particular order

1 answer:

sammy [17]3 years ago

4 0

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Seventy cards are numbered 1 through 70 , one number per card. One card is randomly selected from the deck. What is the probabil

Vanyuwa [196]

Answer:

$Probability = \frac{2}{35}$

Step-by-step explanation:

Given

$Total = 70$

First, we need to list the multiples of 5

$M_5 = \{5,10,15,20,25,30,35,40,45,50,55,60,65,70\}$

Then, multiples of 3 $M_3 = \{3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69\}$

Next, is to list out the common elements in both

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The required probability is then calculated as thus:

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$Probability = \frac{2}{35}$

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