The table below gives the marks obtained in a mathematics test by 47 students. (a) State the modal class (b) Draw a cumulative frequency curve to...

      

The table below gives the marks obtained in a mathematics test by 47 students.
fig62121120191627.png
(a) State the modal class
(b) Draw a cumulative frequency curve to represent the above data.
(c) Use your graph to estimate
(i) Median
(ii) Lower quartile
(iii) Upper quartile
(d) Calculate the quartile deviation

  

Answers


Kavungya
(a) 51-55
fig63121120191628.png
(c) (i) 55.25
(ii) 51
(iii) 60
(d) (60 - 151) / 2 = 4.5
Kavungya answered the question on November 12, 2019 at 13:31


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