**Frequency distribution table shows blood groups of 30 students of a class.**

## Ncert Math Solutions Class 9th Chapter 15 Probability Exercise 15.1 Question 12

**Frequency distribution table shows concentration of sulphur dioxide in the air in parts per million of a certain city for 30 days.**

## Ncert Math Solutions Class 9th Chapter 15 Probability Exercise 15.1 Question 11

**Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg):**

4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00

**Find the probability that any of these bags chosen at random contains more than 5 kg of flour.**

## Ncert Math Solutions Class 9th Chapter 15 Probability Exercise 15.1 Question 8

**The distance (in km) of 40 engineers from their residence to their place of work were found as follows:**

## 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.**

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