Mathematics is like music – Enjoy it!!!
Question 9: Activity : Note the frequency of two-wheelers, three-wheelers and four-wheelers going past during a time interval, in front of your school gate. Find the probability that any one vehicle out of the total vehicles you have observed is…
Read MoreQuestion 8: Refer to Q.2, Exercise 14.2. What is the empirical probability that an engineer lives: less than 7 km from her place of work? more than or equal to 7 km from her place of work? within 1/2 km…
Read MoreQuestion 7: To know the opinion of the students about the subject statistics, a survey of 200 students was conducted. The data is recorded in the following table. Find the probability that a student chosen at random (i) likes statistics,…
Read MoreQuestion 6: Refer to Table 14.7, Chapter 14. Find the probability that a student obtained less than 20% in the mathematics test. Find the probability that a student obtained marks 60 or above. Question 5 Question 7
Read MoreQuestion 5: An organisation selected 2400 families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below: Suppose a family is…
Read MoreQuestion 4: Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes: If the three coins are simultaneously tossed again, compute the probability of 2 heads coming up. Question 3 Question 5
Read MoreQuestion 3: Refer to Example 5, Section 14.4, Chapter 14. Find the probability that a student of the class was born in August. Question 2 Question 4
Read MoreQuestion 2: 1500 families with 2 children were selected randomly, and the following data were recorded: Compute the probability of a family, chosen at random, having (i) 2 girls (ii) 1 girl (iii) No girl Also check whether the sum…
Read MoreQuestion 1: In a cricket match, a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary. Class 9 | Home Question 2
Read MoreExample 10: Fifty seeds were selected at random from each of 5 bags of seeds, and were kept under standardised conditions favourable to germination. After 20 days, the number of seeds which had germinated in each collection were counted and…
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