Please explain the answer(C). Thank you so much! The month of February has eithe

Question

Please explain the answer(C). Thank you so much!

The month of February has either 28 or 29 days; April, June, September and November have 30 days; January, March, May, July, August, October and December have 31 days.

Let event A be a month that has at most 30 days. Let event B be a month that starts with a vowel; that is, the letters {a; e; i; o; u; y}.

10. (3 points) What is the probability that a randomly chosen month has more than 30 days given that it starts with a vowel? (A) 3/12 (B) 4/12 (C) 8/12 (D) 9/12

Explanation / Answer

No of months that start with a vowel = 3

(april, august, october)

Among the months that start with a vowel, number of months that has more than 30 days = 2

(august and october)

So, probability of a month having 30 days, given that it starts with a vowel = 2/3

2/3 = 8/12 (option C)

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---