What is the inter-quartile range of the given data set? 236

Answer: Inter-quartile range =  3 .Step-by-step explanation:Given : diagram with data.To find : What is the inter-quartile range of the given data set.Solution : We have given data .We can see from the given data lowest value of data is  15 . highest value of data  = 21.First quartile ( Q1) = 17 Second quartile (Q2) =18Third quartile (Q3) = 20.Inter-quartile range = Third quartile (Q3) - First quartile ( Q1) .Inter-quartile range =  20 -  17 Inter-quartile range =  3 .Therefore, Inter-quartile range =  3 .