Answer:
1/6
Step-by-step explanation:
January and July both have 31 days in them so that makes 2/12 months and 2/12 simplified is 1/6
The probability that the month selected has 31 days or starts with the letter "J" is 0.75.
The probability helps us to know the chances of an event occurring.
[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]
As we can see in the table stated below that there are 7 months that has 7 days while there is 3 month that starts with the letter J. Also, the month of July has both 31 days and begins with the letter J as well.
January - 31
February - 28
March - 31
April - 30
May - 31
June - 30
July - 31
August - 31
September - 30
October - 31
November - 30
December - 31
Now, the probability that the month selected has 31 days or starts with the letter "J" is
[tex]\rm Probability = \dfrac{\text{Number of months with 31 days or starts with the letter "J" }}{\text{Total number of maths}}[/tex]
[tex]\rm Probability = \dfrac{7+3-1}{12} = \dfrac{9}{12} = 0.75[/tex]
Hence, the probability that the month selected has 31 days or starts with the letter "J" is 0.75.
Learn more about Probability:
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