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The cumulative frequency table is useful...

The cumulative frequency table is useful in determining the

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Median
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The following frequency distribution table shows the number of mango trees in a grove, their yield of mangoes and also the cumulative frequency. Complete the following activity to find the median of the data. Here, total of frequencies N=250. (N)/(2)=(250)/(2)=125 The cumulative frequency which is just greater than 125 is square :. the corresponding class square is the median class. L=150,f=90,cf=square,h=50 Median =L+[(square)/(f)]xxh =150+[(square)/(90)]xx50 =150+(square)/(90)xx50~~184.4 The median of the data is 184.4 mangoes.

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From following table, what is the cumulative frequency of less than type for the class 30-40 ?

Consider the following statements related to cumulative frequency polygon of a frequency distribution, the frequencies being cumulated from the lower end of the range : 1. The cumulative frequency polygon gives an equivalent representation of frequency distribution table. 2. The cumulative frequency polygon is a closed polygon with one horizontal and one vertical side. The other sides have non-negative slope. Which of the above statements is/are correct?

50 students enter for a school javeloin throw competition. The distance (in metre) thrown are recorded below (i) Construct a cumulative frequency table. (ii)Calculate the median distance by using the formula for median.