Question

following are the hieghts of 20 students {in cm}
155,158,152,147,153,162,144,148,141,150,157,145,161,154,142,163,154,160,155,143
make a frequency distribution taable for this data using equal interval ,one of them being 140-155

Answer 1

Answer:

Minimum height =131cm

Maximum height =156cm

Range =156−131=25

Number of classes =4

Class range = 425

=6.25 approx 6

Answer 2

Answer:

first answer is right.....