For project (i), daily 24-hour activities across three members are mapped into lying, sitting and moving. Plotting these consecutive durations builds a stacked bar chart showing each person’s total routine. Class 9 maths Chapter 10 How Quantities Combine Understanding Data solutions
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Movement and sensory disabilities dominate across all age groups. Seeing and hearing disabilities increase significantly among the elderly, while speech and developmental disabilities are more prominent in younger groups. CBSE released Class 9 Ganita Manjari Part 2 book and Solutions Class ...
(i) A stacked bar chart is suitable because comparing total finish times determines the winner. (ii) Only question (b) can be answered, as 100% charts show proportions, not actual times. Class 9 Ganita Manjari Chapter 10 How Quantities Combine Understanding Data ...
(i) Play A or B, as over 70% gave four or five stars, unlike polarized Play C. (ii) Yes; Play B has far more total reviewers (850), making its high rating far more reliable. Class 9 Ganita Manjari part 2 Exercise ...
(i) Only statement (d) is correct because both its percentage (93% vs 74%) and total schools are higher. (ii) No; we need the total number of schools in each state. Class 9 How Quantities Combine Understanding Data (Ganita Manjari 2) Solutions