Statistics Quiz for Class 9
Statistics Quiz for Class 9 | Online MCQ test with answers If you have already watched the chapter 14 videos (Statistics) then you are good to attempt the following quiz. Good luck!!!
Read MoreStatistics Quiz for Class 9 | Online MCQ test with answers If you have already watched the chapter 14 videos (Statistics) then you are good to attempt the following quiz. Good luck!!!
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 MoreMeasures of Central Tendency Very often we need to analyse a given data to find a value that can represent the entire data set. In other words we say the central tendency of the data set. Different types of data…
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…
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