Question:
If a histogram has intervals of 10, starting from 0, and the frequency of the 30-39 interval is three times that of the 10-19 interval which has a frequency of 4, what is the frequency of the 30-39 interval?
If a histogram has intervals of 10, starting from 0, and the frequency of the 30-39 interval is three times that of the 10-19 interval which has a frequency of 4, what is the frequency of the 30-39 interval?