Q2 of 145 Page 407

What is the lower limit of the modal class of the following frequency distribution?





















Age (in years)



0 - 10



10 - 20



20 - 30



30 - 40



40 - 50



50 - 60



60 Number of patients



16



13



6



11



27



18


Here, the maximum class frequency is 27.

The class corresponding to this frequency is the modal class. ⇒ modal class = 40 - 50


∴ lower limit of the modal class (l) = 40


More from this chapter

All 145 →
10

From the following data, draw the two types of cumulative frequency curves and determine the median.















































Height (in cm)



Frequency



140 - 144



3



144 - 148



9



148 - 152



24



152 - 156



31



156 - 160



42



160 - 164



64



164 - 168



75



168 - 172



82



172 - 176



86



176 - 180



34


 1

Write the median class of the following distribution:























Class



0 - 10



10 - 20



20 - 30



30 - 40



40 - 50



50 - 60



60 - 70



Frequency



4



4



8



10



12



8



4


 3

The monthly pocket money of 50 students of a class are given in the following distribution:





















Monthly pocket money (in Rs.)



0 - 50



50 - 100



100 - 150



150 - 200



200 - 250



250 - 300



Number of students



2



7



8



30



12



1



Find the modal class and also give class mark of the modal class.

 4

A data has 25 observations arranged in a descending order. Which observation represents the median?