- A₹27.50
- B₹25
- C₹29.33
- D₹30
Step-by-Step Solution
Class marks 15, 25, 35, 45. ; mean . (₹30 averages the class marks without weights.)
Answer: C) ₹29.33
Daily pocket money of 30 children: ₹10–20 – 5 children, ₹20–30 – 12, ₹30–40 – 8, ₹40–50 – 5. What is the mean daily pocket money?
Competition practiceStatistics
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Statistics practice questions
More Statistics practice
The less-than ogive shows the ages of 60 workers at a textile mill in Surat. How many…A cyclist rides from Agra to a nearby village at 12 km/h and returns along the same road…A wholesaler in Ratnagiri received 40 boxes of mangoes averaging 6.2 kg and 60 boxes…The bar chart shows the trees planted by five schools in Dehradun during Van Mahotsav;…Twenty observations have a mean of 15. Each of the first 10 is increased by 3 and each…