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A histogram is drawn for discrete data.

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Important Questions on Data Handling

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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram

The histogram in the figure shows the frequency distribution of heights of students in a class.
Read the graph and select the correct answer.

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The percentage of students in the lowest height group is

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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The histogram representing the marks obtained by 60 students in a Mathematics examination.
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What is the total number of students who obtained more than or equal to 80 marks in the examination?
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
In a frequency distribution, the mid-value of a class is 10 and width of each class is 6 . The lower limit of the class is
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
Histogram is a graph of a _____ frequency distribution.
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The number of times a particular entry occurs in a set of data is known as its
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The histogram representing the marks obtained by 60 students in a Mathematics examination.
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If the minimum pass marks was 40, how many students failed?
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram

The histogram in the figure shows the frequency distribution of heights of students in a class.
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The total number of students whose height is ≥145cm is

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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The class mark of the class 100-120 is
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram

Look at the given below data.

39, 25, 5, 33, 19, 21,12, 48,13,21, 9, 1, 10, 8, 12, 17, 41, 40,12, 46, 37, 17, 27, 30, 6, 2, 23,19

The frequency distribution of the data is given here.

P
Group  Tally marks Frequency
0-10 |||| | 6
10-20 |||| |||| | 11
20-30 |||| 4
30-40 |||| 5
40-50 ||| 3
Q
Group  Tally marks Frequency
0-10 |||| | 6
10-20 |||| |||| 10
20-30 |||| 5
30-40 |||| 4
40-50 |||| 4

Which of the above tables is the frequency table of the given data?

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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The class mark for a class interval 10-20 is
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The graphical representation of grouped data is _____.
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The mid-value of a class-interval is called its
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
Histogram is a
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
In a histogram, which of the following is proportional to the frequency of the corresponding class?
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
In the class intervals 10-20, 20-30, the number 20 is included in
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The histogram representing the marks obtained by 60 students in a Mathematics examination.
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How many students were awarded merit, if the minimum marks required for it are 80?
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The class marks of a frequency distribution are 15, 20, 25, 30, ….. The class corresponding to the class mark 20 is
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The mid-value of a class interval is 42 and the class size is 10. The lower and upper limits are
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram
The difference between the lower and upper limits of a class interval is called
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Mathematics>Statistics and Probability>Data Handling>Grouping Data and Histogram

Observe the following histogram and answer the question that follows:                            

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Which group of heights contains the maximum number of girls?