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histogram graphically shows how frequently every value in a data set occurs in a relatively objective way

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Class mark is refer to the mid values of class interval

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Label the horizontal axis

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Histograms are particularly useful for understanding the shape of the data distribution. They make easy to see which values are most common and which values are least common

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On the graph, draw two perpendicular lines- horizontal axis and vertical axis and label them.

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We can use this to measure the temperature of people

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Class interval refers to the numerical width of particular distribution

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Class interval is a term that is used to denote the numerical width of a class in a frequency distribution. In a grouped frequency distribution, data is arranged in the form of a class. The difference between the upper-class limit and the lower limit gives the class interval

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Concept of class interval is the difference between the upper and lower class limit of a frequency distribution table

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Can learn about histogram visually display frequency distribution of data, offering insights into patterns, central tendency, and spread of values.

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Histograms effectively display data distributions but can oversimplify complex data and be influenced by bin size selection.

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Histograms help in analyzing data patterns, such as income distribution, population demographics, and product quality control in real-life scenarios.

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Create bars based on the bin sizes and frequencies within the bins

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Field trips

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Class interval in statistics refer to the range of values assisgned to a group of data points

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We can measure the patient’s temperature

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Histogram can help detect any unusual observations or gaps in the data

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Identify the data range: Determine the range of values covered by the dataset. This will help in setting the boundaries of the histogram.

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We can use a histogram to measure how long customers wait to pick up their order

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A class interval is a range of values that are grouped together to form a category or class. In statistics, class intervals are used to organize and analyze data in a more meaningful and manageable way. By grouping similar values together into intervals, patterns in the data can be more easily identified and relationships between variables can be more clearly seen.

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Class boundaries are used to separate the data into classes or groups. By setting class boundaries, we can create distinct intervals or ranges that capture different subsets of data.

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the data need to be grouped into class intervals. Then create a tally to show the frequency (or relative frequency) of the data into each interval.

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Class Width = Upper Class Limit − Lower Class Limit.

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histogram is a graphical representation of data points organized into user-specified ranges. Similar in appearance to a bar graph.

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The class mark refers the center of the class in a frequency distribution table

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Histogram can be used in sales and marketing to develop the most effective plan.

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A histogram consists of rectangles ,which has breadth equal or proportional to the interval

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class interval refers to the numerical width of any class in a particular distribution class intervals is defined as the difference between the upper class limits and the lower class limits

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We can use histogram to measure the weather forecast.

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Histogram construction is divide the entire range of values into a series of intervals—and then count how many values fall into each interval.

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Class interval refers to the numerical width of any class in a particular distribution to effectively organize and analyze data.

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Decide how many bins are needed

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Class boundaries are the end points of open interval which contain the class interval.Class boundaries can also divided in to two kinds of boundary , lower class boundary and upper class boundary.

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Class interval refers to the numerical width of any class in a particular distribution.

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Count the Frequencies

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In statistics and data analysis, the class mark (also known as the class midpoint or class centre) is a value that represents the central tendency of a class interval in a histogram or frequency distribution.

To calculate the class mark, you need to determine the midpoint of each class interval.

Class Mark = (Lower Limit + Upper Limit) / 2

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Class intervals divide a range of values into equal-sized intervals to organize and analyze data efficiently.

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Class interval in statistics refers to the range of values assigned to a group of data points. In other words, it's a grouping of data values into a defined range or “bin”.

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Class width is the difference between the Upper class limit and the Lower class limit of a class interval. Class Width = Upper Class Limit − Lower Class Limit.

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Collect data.

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Class intervals are defined by their boundaries,which represent the lower and upper limits of each interval.

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Describe the effectiveness and limitations of histogram.

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Describe how you can apply the concepts and techniques of histogram to solve real-life problem.

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Describe any new ideas or inspiration comes up from lesson.

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Describe the way you interpret a histogram and extract relevant information.

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Describe one of the processes of constructing a histogram.

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Write down your understanding about class interval, class width, class mark and class boundaries (choose one only）.