CBSE Class 7 Mathematics Worksheet (4)
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CH. 3 : DATA HANDLING
1. ______________ is the most common representative value of a group of data.
2. The difference between the highest and lowest observation is called ______________.
3. The observation that occurs most often is called ______________.
4. ______________ refers the value which lies in the middle of the data.
5. Find the mean of : -
a. First 5 mean even numbers
b. Odd Prime numbers below 10
c. First 5 prime numbers
6. Find the mean, median and mode of the following data.
35, 32, 35, 42, 38, 32, 31
7. Following are the number of members in 20 families in a village.
6, 8, 6, 3, 2, 5, 7, 8, 6, 5, 5, 7, 7, 8, 6, 6, 7, 7, 6, 5
Organize the data in a tabular form.
i) What is the smallest family size?
ii) What is the most common family size ?
8. When a die is thrown, what is the probability of getting
a. an even number b. an odd number
c. zero d. 5
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