For given two values of x, 16, 18 the frequencies are respectively 12 and 20. Then the mode is:

In an exclusive class interval (10 -20), the lower real limit is:

The mode of 2, 3, 3, 5, 3, 5, 7, 3,5is:

A collection of data having more than 3 modes is said to be:

Prepare a frequency distribution table for the scores given:

42,22,55,18,50,10,33,29,17,29,29,27,34,15,40,42,40,41,35,27,

44,31,38,19,54,55,38,19,20,30,42,59,15,19,27,23,40,32,28,51.

Take the class intervals as 10-20, 20-30, 30-40, 40-50, 50-60. From

the frequency distribution table answer the following questions:

(i) What does the frequency corresponding to the class interval 20-30 indicate?

(ii) In which class intervals are the scores 10, 20 and 30 included?

(iii) Find the range of the scores.