Practice set 7.3 algebra 9th

Here, we bring to you detailed answers to the exercises of Chapter 7 Statistics. Subject practice set 7.3 algebra 9th experts who created the solutions have collected these questions for you to revise from the chapter 7 of 9th Maths Maharashtra Board Textbook. This chapter of Maharashtra State Board Class 9 Solutions deals with sub-divided bar-diagram, Grouped and ungrouped frequency distribution, Percentage bar-diagram, Cumulative frequency distribution, Primary and secondary data, Mean, Median and Mode for ungrouped data and data collection.

Question 1. For class interval 20 — 25 write the lower class limit and the upper class limit. Question 2. Find the class-mark of the class Question 3. If class-mark is 10 and class width is 6, then find the class.

Practice set 7.3 algebra 9th

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Find the mode for these marks. The class include 0 and all the numbers less than 10 while class 10 — 20 include 10 and all the numbers less than 20 and so on.

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Exercise 7. The lucid presentation of concepts in easy-to-understand language makes the NCERT Textbooks one of the best study materials for students. To help students understand the important topics given in the chapters, each chapter has exercise questions in the middle and at the end of the chapter. All the solutions are presented in a detailed manner to help students easily understand the concepts. Here, students can check the solutions to Exercise 7. Practicing these questions will help students in the examination, as most of the questions in examinations are asked from NCERT textbooks. Students can use these NCERT solutions to gain an understanding of the detailed method of solving exercise questions.

Practice set 7.3 algebra 9th

Question 1. For class interval 20 — 25 write the lower class limit and the upper class limit. Question 2. Find the class-mark of the class Question 3. If class-mark is 10 and class width is 6, then find the class.

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One of the observations was removed from the data, hence the mean became Let the Lower class limit and upper class limit of the class mark 5 be x and y respectively. The amount in rupees were as follows: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , i. The Mean, Median and Mode are the arithmetic average of a data set. The monthly maximum temperature of a city is given in degree celcius in the following data. Question 6. In a school, 46 students of 9th standard, were told to measure the lengths of the pencils in their compass-boxes in centimetres. What was the correct mean? This will also help them to rectify their mistakes and to avoid making them during the board exams. The mean of 35 observations is 20, out of which mean of first 18 observations is 15and mean of last 18 observation is Review the cleanliness status of canals by actually visiting them. The following table shows the number of Buses and Trucks in nearest lakh units. A hockey player has scored following number of goals in 9 matches. If the salary of office superintendent is added, the mean will increase by Rs. The data is given for 62 students in a certain class regarding their mathematics marks out of

If our Website helped you a little, then kindly spread our voice using Social Networks. Algebra is an important subject that Maharashtra State Board class 9 students need to study till they gather all the fundamental knowledge of the subject. These class 9 Algebra solutions Maharashtra board are prepared by our Algebra experts keeping in mind the prescribed Syllabus of Class 9 Maharashtra Board.

The data collected was as follows. From the data, we observe that 9 students have got 35 and 37 marks which is the highest so mode is 35 and 37 marks. Find the mode of the data. By visiting a certain class, gathering information about attendance of students. One of the observations was removed from the data, hence the mean became How many students obtained less than 60 marks? How many students have scored marks 30 or more than 30? To get information regarding plantation of soybean done by each farmer from the village Talathi. Question 6. Maharashtra State Board Books. By actual visit to homes, to find number of family members. There are 40 students in a class, out of them 15 are boys. The following table shows the number of Buses and Trucks in nearest lakh units. For how many days the maximum temperature was less than 34 o C? The record of marks out of 20 in Mathematics in the first unit test is as follows: 20,6, 14, 10, 13, 15, 12, 14,