Home
Class 10
MATHS
The marks obtained by 30 students of Cla...

The marks obtained by 30 students of Class X of a certain school in a Mathematics paper consisting of 100 marks are presented in table below. Find the mean of the marks obtained by the students.

Text Solution

AI Generated Solution

To find the mean of the marks obtained by the students, we will follow these steps: ### Step 1: Organize the Data We will create a frequency table based on the marks obtained by the students. The table will include the marks (xi) and the number of students (fi) who obtained those marks. | Marks (xi) | Frequency (fi) | |------------|----------------| | 10 | 1 | ...
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    NCERT ENGLISH|Exercise EXERCISE 14.4|3 Videos

  • STATISTICS

    NCERT ENGLISH|Exercise Exercise 14.3|7 Videos

  • SOME APPLICATIONS OF TRIGONOMETRY

    NCERT ENGLISH|Exercise SOLVED EXAMPLES|7 Videos

  • SURFACE AREAS AND VOLUMES

    NCERT ENGLISH|Exercise Exercise 13.3|9 Videos

Similar Questions

Explore conceptually related problems

The table shows the marks obtained by 25 students in a class test. Find the mean of the marks obtained

Rahim obtained 60 marks out of 75 in Mathematics. Find the percentage of marks obtained by Rahim in Mathematics.

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

A student draws a cumulative frequency curve for the marks obtained by 40 students of a class as shown below. Find the median marks obtained by the students of the class. (FIGURE)

If for some x in R , the frequency distribution of the marks obtained by 20 students in a test is: Then the mean of the marks is:

Use the table given below to find : The class marks of the third class.

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:(i) Highest and the lowest marks obtained by the students.(ii) Range of the marks obtained.(iii) 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: (i) Highest and the lowest marks obtained by the students. (ii) Range of the marks obtained. (iii) Mean marks obtain

The mean of marks obtained in an examination by a group of 100 students was found to be 49.96. The mean of the marks obtained in the same examination by another group of 200 students was 52.32, then the mean of the marks obtained by both the groups of students taken together is

The following histogram depicts the marks obtained by 45 students of a class: Figure: Look at the histogram and answer the following questions: What is the class size? How many students obtained less than 10 marks? How many students obtained 30 or more marks but less than 40? What is the interval of highest marks and how many students are there in this interval? If passing marks are 30, what is the number of failures?