RSMSSB · Statistics · Quiz
5 real RSMSSB questions on Statistics. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
MEDIUMThe frequency distribution of ages of 40 people is given below: Age: 20-30, 30-40, 40-50, 50-60 Frequency: 8, 12, 14, 6 Find the mean age using the class-mark method.