The following scores obtained by 20 students in a test where the total marks is 150.are theCalculate the range of these data and comment on whether you think it is a useful measure ofdispersion.

The following scores obtained by 20 students in a test where the total marks is 150 .are the Calculate the range of these data and comment on whether you think it is a useful measure ofdispersion.

Following data gives the marks obtained by 100 students in a test. Find the median

Following are the marks obtained by 50 students in a unit test, which is administered for 10 marks. Find the mode of the data.

The information regarding the marks scored by 30 students in a 20 mark test of Mathematics is given below: Find the mean of the data.

The historgam below represents the scores obtained by 25 students in a Mathematics mental test. Use the data to : (ii) to calculate mean.

In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks.

In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks.

The following marks are obtained by students in a test : 82,72,91,90,86,85,92,70,71,83,89,94,85,79,62 .Find the range of the marks

The scores of 20 students in a test is tabulated as follows: Find the mode of the data.

The historgam below represents the scores obtained by 25 students in a Mathematics mental test. Use the data to : (iii) To determine the Modal class.