The distance (in km) of 40 engineers from their residence to their place of work were found as follows:
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Ncert Math Solutions Class 9th Chapter 15 Probability Exercise 15.1 Question 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.
Ncert Math Solutions Class 9th Chapter 15 Probability Exercise 15.1 Question 6
Table shows marks of 90 students in mathematics test.
Ncert Math Solutions Class 9th Chapter 15 Probability Exercise 15.1 Question 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:
Ncert Math Solutions Class 9th Chapter 15 Probability Exercise 15.1 Question 4
Three coils are tossed simultaneously 200 times with the following frequencies of different outcomes:
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