Each friend has a 30% chance to get a musical card. Design a simulation that can be used to estimate the probability that a friend who receives 2 greeting cards will receive at least one musical greeting card

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Mathematics

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15 February, 15:32

Each friend has a 30% chance to get a musical card. Design a simulation that can be used to estimate the probability that a friend who receives 2 greeting cards will receive at least one musical greeting card

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Moses · Answer 1

The probability that a friend who receives 2 greeting cards will receive at least one musical greeting card is 0.3

Step-by-step explanation:

The probability of getting a musical card = P (A) = 30 % or 0.3

Therefore probability of not receiving a plain card = P (A) ' = P (B) = 100-30 or 1 - 0.3 = 0.7

The probability of receiving at least one musical card when two cards are given is

P (A) * P (A) + P (A) * P (B) - P (B) * P (B) = 0.3*0.3+0.3*0.7 = 0.3

The probability of receiving at least one musical card = 0.3