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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.

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.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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 i) Construct a 'less than' ogive for the data above. ii) Estimate the median value using the ogive in (i). 12 7 5 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 book using the ogive in (i). v) The mean and variance of time to read a book by a group of students from Primary School are 43.21 and 234.7 respectively. Determine which group of students is more consistent in the time spent reading a book.
Transcribed Image Text: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 i) Construct a 'less than' ogive for the data above. ii) Estimate the median value using the ogive in (i). 12 7 5 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 book using the ogive in (i). v) The mean and variance of time to read a book by a group of students from Primary School are 43.21 and 234.7 respectively. Determine which group of students is more consistent in the time spent reading a book.
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