The marks (out of 100) obtained by a gro...

The marks (out of 100) obtained by a group of students in a science test are 85,76,90,85,39,48,56,95,81 and 75. Find the : Range of the marks obtained.

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The marks (out of 100) obtained by a group of students in a science test are 85,76,90,85,39,48,56,95,81 and 75. Find the : Mean marks obtained by the group.

The marks (out of 100) obtained by a group of students in a science test are 85,76,90,85,39,48,56,95,81 and 75. Find the : Highest and the lowest marks obtained by the students.

Following are the marks obtained by 9 students in a Mathematics test : 50, 69, 20, 33, 53, 39, 40, 65, 59. The mean deviation from the median is :

The marks obtained by a student of class XI in the first and second terminal examination are 62 and 48 respectively. Find the minimum marks he should get in the annual examination to have an average of at least 60 marks .

The marks obtained by a student of Class XI in first and second terminal examination are 62 and 48, respectively. Find the minimum marks he should get in the annual examination to have an average of at least 60 marks.

In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks. (a)Find how many students obtained marks equal to or more than 7.

In a mathematics test given to 15 students, the following marks (out of 100) are recorded 41,39,48,52,46,62,54,40,96,52,98,40,42,52,60 Find the mean, median and mode of this data.

The data regarding marks obtained by 48 students of a class in a class test is given below. Calculate the modal marks of students.

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 marks 60 or above.

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