Question

The table below shows the number of people who responded to a survey about their favourite style of music. Use this information to answer to the nearest whole percentage.

What percentage of respondents aged \(21\)-\(30\) indicated a favourite style other than Rock music?

• A. \(64\%\)
• B. \(60\%\)
• C. \(75\%\)
• D. \(36\%\)

Hint:

Subtract the Rock count from the total for the 21-30 age group, then divide by that same total.

Answer 1

The Correct Option is A

Step 1: List every non-Rock category in the 21-30 column.
From the table: Classical $= 4$, Pop $= 5$, Jazz $= 4$, Blues $= 3$, Hip-Hop $= 3$, Ambient $= 2$.

Step 2: Add these values directly.
$4 + 5 + 4 + 3 + 3 + 2 = 21$, the same count of non-Rock respondents as before, found without subtracting from the total.

Step 3: Divide by the group total.
$\frac{21}{33} \times 100 = 63.63\ldots\%$.

Step 4: Round to the nearest whole percent.
$63.63\%$ rounds to $64\%$.

Final Answer:
Adding the individual genres confirms the same share. \[ \boxed{64\%} \]