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Picking a month of the year in the day of the week (fundamental counting principle)

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Since you mentioned the fundamental counting principle, I assume you are looking for the total number of possibilities.

If you are picking a month, there are 12 options.
If you are selecting a day of the week, there are 7 options.

If you are doing both, you multiply the two numbers together.
12 x 7 = 84
User Ahmehri
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Using the fundamental counting principle to pick a month of the year in the day of a week would give 84 combinations.

How to find the number of combinations ?

The Fundamental Counting Principle is a concept in combinatorics that helps you calculate the total number of possible outcomes when you have multiple independent choices or events.

Choices for the Month: There are 12 months in a year. So, you have 12 choices for the month.

Choices for the Day of the Week: There are 7 days in a week

To find the total number of possible combinations of a month and a day of the week, you simply multiply the number of choices for each event:

Total Number of Combinations = Number of Choices for Month x Number of Choices for Day of the Week

Total Number of Combinations = 12 months x 7 days

= 84 combinations

In conclusion, there are 84 different combinations of selecting a month of the year and a day of the week using the Fundamental Counting Principle.

User Byungjoon Lee
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