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The following table gives the frequency distribution of the ages of a random sample of 104 Iris student

Sagot :

Given:

The frequency values are given for class interval of N = 104 IRSC students.

The objective is to find cumulative frequency, cumuative relative frequency and cumulative percentage.

Cumulative frequency is addition of the previous frequency values.

So, the cumulative freqency values can be cclculated as,

The formula to find the cumulative relative frequency is,

[tex]\text{CRF}=\frac{CF}{N}[/tex]

Now, the cumulative relative frequency can be calculated as,

Now, the formula to find the Cumulative percentage is,

[tex]\text{Cumulative \% = CRF }\times100[/tex]

Then, the table values for Cumulative percentage will be,

Hence, the required cumulative frequency, cumuative relative frequency and cumulative percentage values are obtained.

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