Question

In a table showing L.C.F.D. and G.C.F.D; for a class whose upper boundary is $60$ has less than cumulative frequency of $35$ and a class whose lower boundary is $60$ has greater than cumulative frequency of $25$. Find the total frequency of the distribution.

• A. $10$
• B. $60$
• C. $35$
• D. $70$

Answer 1

The correct option is B $60$

Till class $.......60$, the C.F. is $=35$
And for classes from $\mathrm{60...}$, the C.F. $=25$
So, total frequency $=35+25=60$