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Example 1: Construct a triangle ABC, in which ∠B = 60°, ∠ C = 45° and AB + BC + CA = 11 cm. Construction 11.6 Ex. 11.2 | Question 1 This example is based on the the construction 11.6…
Read MoreQuestion 5: Construct a right triangle whose base is 12 cm and sum of its hypotenuse and other side is 18 cm. Question 4 Constructions Home
Read MoreQuestion 4: Construct a triangle XYZ in which ∠Y=30°, ∠Z=90° and XY+YZ+ZX=11cm. Question 3 Question 5
Read MoreQuestion 5: Find the mean salary of 60 workers of a factory from the following table: Question 6: Give one example of a situation in which (i) the mean is an appropriate measure of central tendency. (ii) the mean is…
Read MoreQuestion 3: The following observations have been arranged in ascending order. If the median of the data is 63, find the value of x. 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95 Question 4: Find the…
Read MoreQuestion 1: The following number of goals were scored by a team in a series of 10 matches: 2, 3, 4, 5, 0, 1, 3, 3, 4, 3 Find the mean, median and mode of these scores. Question 2: In…
Read MoreExample 14: Find the mode of the following marks (out of 10) obtained by 20 students: 4, 6, 5, 9, 3, 2, 7, 7, 6, 5, 4, 9, 10, 10, 3, 4, 7, 6, 9,9 Example 15: Consider a small…
Read MoreExample 12: The heights (in cm) of 9 students of a class are as follows: 155 160 145 149 150 147 152 144 148 Find the median of this data. Example 13: The points scored by a Kabaddi team in…
Read MoreExample 10: 5 people were asked about the time in a week they spend in doing social work in their community. They said 10, 7, 13, 20 and 15 hours, respectively. Find the mean (or average) time in a week…
Read MoreQuestion 9: 100 surnames were randomly picked up from a local telephone directory and a frequency distribution of the number of letters in the English alphabet in the surnames was found as follows: (i) Draw a histogram to depict the…
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