© 2006 1 -2008 tutorco.com 1) Find the mean of daily wages of 60 workers in a factory as per data given below: Daily wages( in $ ) 90 110 120 130 150 No. of workers 12 14 13 11 10 2) Find the mean Class 0-10 10-20 20-30 30-40 40-50 Frequency 3 5 9 5 3 3) The heights of 72 plants in a garden are given below. Height ( in cm ) 58 60 62 64 66 68 No of plants 12 14 20 13 8 5 Find the mean heights per plants TOPIC: DATA INTERPRETATION 8/5/5/VL© 2006 2 -2008 tutorco.com 4) Find the median weight for the following data. Weight(inkg) 45 46 48 50 52 54 55 Number of students 8 5 6 9 7 4 2 5) Find the median Class interval 0-8 8-16 16-24 24-32 32-40 40-48 Frequency 8 10 16 24 15 7 .6) Find the median of 1. 2,10,9,9,5,2,3,7,11 2. 15,6,16,8,22,21,9,18,25 © 2006 3 -2008 tutorco.com 7). Math Test Scores (out of 50 pts) Stem Leaf 3 5 6 8 4 0 2 2 4 5 5 7 8 9 5 0 0 0 According to the stem and leaf plot, how many test scores are in the 40's? 8) Make a stem-and-leaf plot of this data. January maximum temperatures in Alaskan cities (Fahrenheit): 40 46 73 39 35 43 49 49 42 46 50 49 51 45 51 51 47 76 54 28 22 47© 2006 4 -2008 tutorco.com 9) Build a stem-and-leaf plot of this data set. . 25,800, 24,829, 26,483, 30,291, 29,103, 24,392, 26,392, 27,392, 27,190, 28,903 10) Find the median, lower quartile and upper quartile of the following numbers. 12, 5, 22, 30, 7, 36, 14, 42, 15, 53, 25 © 2006 5 -2008 tutorco.com 11) Find the median, lower quartile, upper quartile and interquartile range of the following numbers. 12, 5, 22, 30, 7, 36, 14, 42, 15, 53, 25, 65 12) Draw a box and whisker plot for the given data 1,4,6,7,8,9,15 13) Construct a box plot for the following data: 12, 5, 22, 30, 7, 36, 14, 42, 15, 53, 25 © 2006 6 -2008 tutorco.com 14) Construct a box and whisker plot 2,6,7,8,9,9,11