Question : Calculate the mean from the following table.
Option 1: 34.2
Option 2: 33.4
Option 3: 32.6
Option 4: 35.8
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Correct Answer: 33.4
Solution :
Mean = $\frac{\sum \text{ (Mid Point × Frequencies)}}{\sum \text{Frequencies}}$ = $\frac{10+60+300+735+270+165+130}{2+4+12+21+6+3+2}$ = $\frac{1670}{50}$ = 33.4 Hence, the correct answer is 33.4.
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Question : The following table shows the marks distribution among the students in a class.
How many students scored marks between 20 and 30?
Option 1: 2
Option 2: 5
Option 3: 1
Option 4: 6
Question : The following table shows the marks distribution among students in a class.
How many students scored less than 20 marks?
Option 1: 5
Option 2: 7
Option 3: 2
Question : Study the given table and answer the question that follows. The table shows the marks distribution among the students in a class.
How many students scored more than 40 marks?
Option 2: 4
Option 3: 5
Option 4: 3
Question : Refer to the following data table and answer the question.
What is the ratio of number of the boys to girls?
Option 1: 26 : 31
Option 2: 31 : 26
Option 3: 33 : 28
Option 4: 28 : 33
Question : Refer to the data table and answer the following question.
How many students have scored marks 20 or more but less than 40?
Option 1: 31
Option 2: 56
Option 3: 44
Option 4: 100
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