O P Malhotra, S K Gupta and, Anubhuti Gangal Solutions for Exercise 4: Chapter Test
O P Malhotra Mathematics Solutions for Exercise - O P Malhotra, S K Gupta and, Anubhuti Gangal Solutions for Exercise 4: Chapter Test
Attempt the practice questions from Exercise 4: Chapter Test with hints and solutions to strengthen your understanding. ICSE Mathematics solutions are prepared by Experienced Embibe Experts.
Questions from O P Malhotra, S K Gupta and, Anubhuti Gangal Solutions for Exercise 4: Chapter Test with Hints & Solutions
The table shows a frequency distribution of the life times of radio tubes tested at a company. Determine the lower limit of the eighth class.
| Life time (hours) | Number of tubes |
The table shows a frequency distribution of the life times of radio tubes tested at a company. With reference to this table determine the class mark of the seventh class.
| Lifetime (hours) | Number of tubes |
The table shows a frequency distribution of the life times of radio tubes tested at a company. With reference to this table determine the
Class boundaries of the last class is?
The table shows a frequency distribution of the life times of radio tubes tested at a company. If the size of class interval is hours, then find the value of .
| Life time (hours) | Number of tubes |
The table shows a frequency distribution of the lifetimes of radio tubes tested at a company. With reference to this table determine the:
Frequency of the fourth class.
| Life time (hours) | Number of tubes | Life time (hours) | Number of tubes |
| 300-399 | 14 | 800-899 | 62 |
| 400-499 | 46 | 900-999 | 48 |
| 500-599 | 58 | 1000-1099 | 22 |
| 600-699 | 76 | 1100-1199 | 6 |
| 700-799 | 68 |
The scores of a batsman in innings is as under:
Draw a frequency polygon to display the distribution.
Two frequency polygons are shown giving the distribution of the weights of players in two different sports and
Comment on two differences between the two frequency polygons.
Two frequency polygons are shown giving the distribution of the weights of players in two different sports and
Either for or for suggest a sport where you would expect the frequency polygon of weights to have this shape. Explain in one sentence why you have chosen that sport.
