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vivado [14]
3 years ago
7

A state lottery involves the random selection of six different numbers between 1 and 30. If you select one six number combinatio

n, what is the probability that it will be the winning combination?
A. 1/720
B. 1/593,775
C. 1/427,518,000
D. 1/789,000,000
Mathematics
1 answer:
vitfil [10]3 years ago
4 0

<em><u>Option C</u></em>

<em><u>The probability that it will be the winning combination is:</u></em>

P = \frac{1}{427518000}

<em><u>Solution:</u></em>

<em><u>The probability is given as:</u></em>

Probability = \frac{\text{number of favorable outcomes}}{\text{total number of outcomes}}

Given that,

A state lottery involves the random selection of six different numbers between 1 and 30

There are 30 numbers from 1 to 30

<em><u>The probability that the first digit of lottery number is same as picked can be calculated as:</u></em>

P(1) = \frac{1}{30}

Since, already we picked 1 digit, now total outcomes = 30 - 1 = 29

<em><u>The probability that the second digit of lottery number is same as picked can be calculated as:</u></em>

P(2) = \frac{1}{29}

<em><u>Similarly, The probability that the all digit of lottery number is same as picked can be calculated as:</u></em>

P = P(1) \times P(2) \times P(3) \times P(4) \times P(5) \times P(6)\\\\P = \frac{1}{30} \times \frac{1}{29} \times \frac{1}{28} \times \frac{1}{27} \times \frac{1}{26} \times \frac{1}{25}\\\\P = \frac{1}{427518000}

Thus Option C is correct

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