If a data set has frequencies 5, 7, and 3 for categories A, B, and C, what is the relative frequency of B?

If a data set has frequencies 5, 7, and 3 for categories A, B, and C, what is the relative frequency of B?

• A. 7/12
• B. 7/15
• C. 5/15
• D. 9/15

Answer: (B)

Relative frequency tells you what portion of the whole data belongs to a specific category. To find it, add up all the category counts to get the total: 5 + 7 + 3 = 15. For category B, divide its count by the total: 7/15. So, the relative frequency is 7/15, which is about 0.4667 or 46.7% of the data. Remember, the relative frequencies for all categories sum to 1.

Relative frequency tells you what portion of the whole data belongs to a specific category. To find it, add up all the category counts to get the total: 5 + 7 + 3 = 15. For category B, divide its count by the total: 7/15. So, the relative frequency is 7/15, which is about 0.4667 or 46.7% of the data. Remember, the relative frequencies for all categories sum to 1.