Know Your Onions!

Transcript

Know Your Onions!We are given this question The table shows the monthly price of onions, in rupees per kilogram (kg), at two towns. Where are onions costlier, according to you? Month Yahapur Month Wahapur January 25 January 19 February 24 February 17 March 26 March 23 April 28 April 30 May 30 May 38 June 35 June 35 July 39 July 42 August 43 August 39 September 49 September 53 October 56 October 60 November 59 November 52 December 44 December 42Month Yahapur Month Wahapur January 25 January 19 February 24 February 17 March 26 March 23 April 28 April 30 May 30 May 38 June 35 June 35 July 39 July 42 August 43 August 39 September 49 September 53 October 56 October 60 November 59 November 52 December 44 December 42One of the best ways to compare two groups of data is to find the average (also called the mean). This gives you a single number that represents the whole year. To find the average, we use this formula: Average price of onion = (𝑻𝒐𝒕𝒂𝒍 𝒑𝒓𝒊𝒄𝒆 𝒐𝒇 𝒐𝒏𝒊𝒐𝒏𝒔 𝒊𝒏 𝒂𝒍𝒍 𝒎𝒐𝒏𝒕𝒉𝒔)/(𝑵𝒖𝒎𝒃𝒆𝒓 𝒐𝒇 𝒎𝒐𝒏𝒕𝒉𝒔) For Yahapur Now, Average price of onion = (25+24+26+28+30+35+39+43+49+56+59+44)/12 = 𝟒𝟓𝟖/𝟏𝟐 Thus, Average Price = 458/12 = ₹38.166… per kg For Wahanpur Now, Average price of onion = (19+17+23+30+38+35+42+39+53+60+52+42)/12 = 𝟒𝟓𝟎/𝟏𝟐 = 225/6 = 75/2 = 37.5 Thus, Average Price = ₹37.5 per kg Therefore, On average, onions are slightly costlier in Yahapur