A student noted the number of cars passing through a spot on a road for 100periods each of 3 minutes and summarized it in the table given below. Find the mode of the data:


Number of cars



0 - 10



10 - 20



20 - 30



30 - 40



40 - 50



50 - 60



60-70



70-80



Frequency



7



14



13



12



20



11



15



8


As per the question:

Modal class = 40-50


l = 40


h = 10


f1 = 20


f0 = 12


f2 = 11



=



= 44.70


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