Question 1 - Page 118 - Data Visualisation - Chapter 5 Class 7 - Connecting the Dots... (Ganita Prakash II)

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Question 1 - Page 118 Identify which of the following statements can be justified using this data. (a) All organisations launched more rockets than the previous years. (b) Only an organisation from the USA launched more than 50 rockets in a single year. (c) The total number of rockets launched by France in all 3 years is less than 40. (d) The average number of rockets launched by CASC in these 3 years is around 40. (e) ISRO launched more rockets than Galactic Energy in these 3 years. (f) Russia launched more than 60 rockets in these 3 years.Let’s look at the graph again, and do all options one-by-one (a) All organisations launched more rockets than the previous years. False. Arianespace launched fewer each year. (b) Only an organisation from the USA launched more than 50 rockets in a single year. True. Look at SpaceX (USA) - their 2022 and 2023 bars cross the 60 mark. No other country's bar is that long. (c) The total number of rockets launched by France in all 3 years is less than 40. True. France’s organization is Arianespace (from the flag) Now, visually adding the small bars for Arianespace – it’s approx 𝟏𝟓+𝟏𝟎+𝟔=𝟑𝟏 And, 31 is less than 40 (d) The average number of rockets launched by CASC in these 3 years is around 40. True. Their bars are roughly around the 40−60 mark. (e) ISRO launched more rockets than Galactic Energy in these 3 years. True. ISRO's bars are consistently longer than Galactic Energy's. (f) Russia launched more than 60 rockets in these 3 years. False Roscosmos (Russia) launched approximately 18 + 19 + 21 = 58 And, 58 is less than 60