Question

mode is also given but you find value for X. ​

Answer 1

C.I. Fi

Modal class is 60―70. 15

Mode =l+(f1-f0)/(2f1-f0-f2)×h

67 =60+(15-x)/(18-x)×10

7=(150-10x)/(18-x)

126-7x=150-10x

3x=24

x=8