In a survey of monthly mobile-recharge spend (in Rs) of households in a Jaipur colony, the classes are 0-100, 100-200, 200-300, 300-400 with frequencies 6, 14, 20, 10. Find the mode (l, f1, f0, f2, h to be read from the table).
Class 10Mode of Grouped DataStatistics and Probability
A237.5
B225.0
C250.0
D212.5
Step-by-Step Solution
Modal class 200-300: l=200,f1=20,f0=14,f2=10,h=100. Mode =200+2×20−14−1020−14∗100=200+166∗100=200+37.5=237.5.
Answer: A) 237.5
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