A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table :
: Find the probability that a student obtained 60 or above

A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table : : Find the probability that a student obtained less than 20 marks in the mathematics test.

A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table : : Find the probability that a student obtained less than 20% in the mathematics test.

Refer the data: Find the probability that a student obtained marks 60 or above.

A teacher wanted to analyse the performance of two sections of students in a Mathematics test. She grouped the students into the categories obtaining marks between 0 - 35, 35 - 50, 50 - 60, 60 - 75, 75 and above and formed the following table : Prepare a histogram to respresent the above data.

To know the opinion of the students about the subject statistics, a survey of 200 students was conducted. The data is recorded in the following table : Find the probability that a student chosen at random : likes statistics.

Refer the data: Find the probability that a student obtained less than 20% in the mathematics test.

Refer to Table 14.7 (i) Find the probability that a student obtained less than 20% in the mathematics test. (ii) Find the probability that a student obtained marks 60 or above.

The percentage of marks obtained by a student in the monthly unit tests are given below: Based on this data, find the probability that the student gets more than 70% marks in a unit test.

Marks obtained by 2500 students are shown in the following table: A student is selected at random. Find the probability that : he scores less than 60% marks.

Marks obtained by 2500 students are shown in the following table: A student is selected at random. Find the probability that : he scores more than 80% marks.