b) The following table shows the time spent in reading a book by a group of standard sixstudents from Permata Primary School.Time (in minutes)30-3940 - 4950-5960-6970-79Number of students25161275i) Construct a 'less than' ogive for the data above.ii) Estimate the median value using the ogive in (i).iii) Calculate the mean and the standard deviation for the data above.iv) Estimate the percentage of students who spent more than one hour to read a bookusing the ogive in (i).v) The mean and variance of time to read a book by a group of students from BerlianPrimary School are 43.21 and 234.7 respectively. Determine which group of studentsis more consistent in the time spent reading a book.

Given data: Time Number of students 30 - 39 25 40 - 49 16 50 - 59 12 60 - 69 7 70 - 79…

b) The following table shows the time spent in reading a book by a group of standard six students from Permata Primary School. Time (in minutes) 30-39 40-49 50-59 60-69 70-79 Number of students 25 16 12 7 5 i) Construct a 'less than' ogive for the data above. ii) Estimate the median value using the ogive in (i). iii) Calculate the mean and the standard deviation for the data above.

b) The following table shows the time spent in reading a book by a group of standard six students from Permata Primary School. Time (in minutes) 30-39 40-49 50-59 60-69 70-79 Number of students 25 16 12 7 5 i) Construct a 'less than' ogive for the data above. ii) Estimate the median value using the ogive in (i). iii) Calculate the mean and the standard deviation for the data above.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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