ASSERTION (A): In a histogram, the areas of each rectangle is proportional to the class size of the corresponding interval. REASON (R): To draw the histogram of a continuous frequency distribution with unequal class intervals, the frequencies of classes are adjusted by using the formula: Adjusted frequency of class = (Minimum Class Size / Class Size) × Frequency of the class

Histogram for Grouped Data, Histogram with Varying Class Widths | PadhAiPro

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Assertion-ReasonHistogram for Grouped DataHistogram with Varying Class WidthsCBSE PYQ

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Draw a histogram for the marks of students given below:

TextClass Width or Class SizeHistogram for Grouped DataHistogram with Varying Class Widths

Read the bar graph given in Figure and answer the following questions:

CASE_STUDIES

Bar Graph Representation of Data

Histogram for Grouped Data

Construct a histogram for the following data: | Monthly School fee (in ₹) | 30 – 60 | 60 – 90 | 90 – 120 | 120 – 150 | 150 – 180 | 180 – 210 | 210 – 240 | |---|---|---|---|---|---|---|---| | No of Schools | 5 | 12 | 14 | 18 | 10 | 9 | 4 |

TextBar Graph Representation of DataHistogram for Grouped Data

The following table gives the marks scored by 100 students in an entrance examination. | Mark | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 | |------|------|-------|-------|-------|-------|-------|-------|-------| | No. of Students (Frequency): | 4 | 10 | 16 | 22 | 20 | 18 | 8 | 2 | Represent this data in the form of a histogram.

TextHistogram for Grouped Data

To draw a histogram to represent the following frequency distribution: | Class interval | 5–10 | 10–15 | 15–25 | 25–45 | 45–75 | |----------------|------|-------|-------|-------|-------| | Frequency | 6 | 12 | 10 | 8 | 15 | The adjusted frequency for the class 25–45 is

MCQ (Single)Histogram with Varying Class Widths

A teacher is a person whose professional activity involves planning, organizing, and conducting group activities to develop student's knowledge, skills, and attitudes as stipulated by educational programs. Teachers may work with students as a whole class, in small groups or one-to-one, inside or outside regular classrooms. In this indicator, teachers are compared by their average age and work experience measured in years. For the same in 2015, the following distribution of ages (in years) of primary school teachers in a district was collected to evaluate the teacher on the above-mentioned criterion.

CASE_STUDIESClass Mark in Grouped Frequency DistributionHistogram for Grouped Data