Answer:
C) 4-12
Step-by-step explanation:
<u>A) 0-7</u>
<em>Its frequency will only be 3 and there are no numbers from 0 till 3 therefore, this is not the best interval.</em>
<u>B) 4-5</u>
<em>This interval is too short. If you go on with the intervals, there will be a lot of sets. Therefore, this is not right.</em>
<u>C) 4-12</u>
<em>The set starts from 4 and so does the interval. The interval 4-12 will have a frequency of 6 and the next intervals will be 13-21, 22-30, 31-39.</em>
<em>Therefore, this is the best interval for the data.</em>
<u>D) 0-10</u>
<em>There are no numbers from 0-3 or 9-10, therefore this is not the best interval.</em>
The correct answer is option C) 4-12
!!