basicSSC
A histogram has class-frequency pairs 0–10:8, 10–20:11, 20–30:15, 30–40:10, 40–50:7. Find the frequency of class 20–30.
Histogram
Question 1 of 50 | Total: 50
A histogram has class-frequency pairs 0–10:8, 10–20:11, 20–30:15, 30–40:10, 40–50:7. Find the frequency of class 20–30.