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# Important formulas for Class 10 Statistics

Last updated date: 02nd Aug 2024
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## Statistics Formula for CBSE Class 10 Maths - Free PDF Download

Competitive Exams after 12th Science

## CBSE Class 10 Maths Chapter 14 - Statistics Formula

### Solved Examples for Class 10 Statistics

1. A survey was conducted by a group of students as a part of their environment awareness programmes, in which they collected the following data regarding the number of plants in 30 houses in a locality. Find the mean number of plants per house.

 Number of Plants 1 3 5 7 9 11 13 Number of Houses 11 2 1 5 6 2 3

Ans: Mean = 5.73

2. The following table shows the weights of 10 children. Find the mean by using a direct method.

 Weight (in kg) 66-68 68-70 70-72 72-74 74-76 Number of students 3 3 2 1 1

Ans:  69.8 kg

3. The following table shows the ages of the patients admitted in a hospital during a year. Find the mode.

 Age (in years) 5-15 15-25 25-35 35-45 45-55 55-65 Number of patients 6 11 21 23 14 5

Ans:  36.8 year

### Conclusion

Statistics is the study of collecting, classifying, arranging, and interpreting numerical data in a clear way. Statistics interprets the data and estimates possible results. There are a number of basic Statistics formulas that can help you in dealing with facts, observations, and information that are simply numerical. We can find various measures of central tendency and the deviation of data values from the centre using statistics.