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seraphim [82]
3 years ago
9

What is the probability that two people selected at random have the same birthday

Mathematics
1 answer:
arlik [135]3 years ago
8 0
Hello, there!

There are 365 days in a year.

We already know that one person has a birthday on blank day. We will call this person a. That means that there is a 100% chance that they have that birthday.

Because there are 365 days in a year, the odds of person b having a birthday on a certain day is 1/365

Odds of person A having that birthday: 365/365

Odds of person B having that birthday: 1/365

To find the odds of them having the same birthday, we must multiply these odds.

365/365 * 1/365 = 1/365

1/365 = 0.27%

This means that there is a 0.27% chance that both people share the same birthday.


I hope I helped!

Let me know if you need anything else!

~ Zoe

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Step-by-step explanation:

Given - To decorate a wall, there are 15 cm blue, 20 cm green, and 25 cm red strips of paper. On the wall you want to build three lines of the same size, one of each color and without cutting any strip.

To find - a) How long is the smallest line that can be made with each color?

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              c) How many of each color?

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a)

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