Decile and Quartile ReviewVersión en línea Test your knowledge on deciles and quartiles of ungrouped data with this fun quiz! por Mary Mershel Ong 1 What is a decile? a A value that divides a dataset into four equal parts. b A measure of central tendency. c A type of graph. d A value that divides a dataset into ten equal parts. 2 How many quartiles are there in a dataset? a Five quartiles. b Four quartiles. c Two quartiles. d Three quartiles. 3 What does the first quartile (Q1) represent? a The 50th percentile of the data. b The highest value in the data. c The 25th percentile of the data. d The 75th percentile of the data. 4 How is the 5th decile (D5) defined? a It is the first quartile. b It is the median of the dataset. c It is the highest value. d It is the lowest value. 5 What is the formula to find the position of a quartile? a Qk = (k(n + 1))/4, where k is the quartile number. b Qk = (k(n - 1))/4 c Qk = (k(n + 2))/4 d Qk = (k(n + 3))/4 6 Which of the following is true about deciles? a They are measures of variability. b They divide the data into ten equal parts. c They divide the data into five equal parts. d They are only used for grouped data. 7 What does the third quartile (Q3) indicate? a The 75th percentile of the data. b The highest value in the data. c The 50th percentile of the data. d The 25th percentile of the data. 8 In ungrouped data, how do you calculate the deciles? a Sort the data and find values at specific positions. b Calculate the mode of the dataset. c Use the median only. d Use the mean of the dataset. 9 What is the range of values for deciles? a D0 to D10. b D1 to D9. c Q1 to Q4. d P1 to P10. 10 Which of the following represents the second quartile (Q2)? a The third decile. b The first decile. c The mean of the dataset. d The median of the dataset.
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