If you ask three strangers about their birthdays, what is the probability:

1 answer:

8 0

Part A:

The probability that all three strangers have their birthdays on a Wednesday is calculated as

$\left( \frac{1}{7} \right)^3= \bold{\frac{1}{343}}$

Part B:

The probability that the birthdays of the three individuals fall on distinct days throughout the week is calculated as

$\left( \frac{1}{7} \right)\left( \frac{1}{6} \right)\left( \frac{1}{5} \right)= \bold{\frac{1}{210}}$

Part C:

The probability that none of the three have their birthdays on a Saturday is determined by

$\left( \frac{6}{7} \right)^3= \bold{\frac{216}{343}}$

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