Excercises on chapter 2. Exercises on chapter 2 Complete the table,then answer the following questions Text Book : Basic Concepts and Methodology for.

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Excercises on chapter 2

Exercises on chapter 2 Complete the table,then answer the following questions Text Book : Basic Concepts and Methodology for the Health Sciences 2

Cumulative Relative Frequency Relative Frequency R.f Cumulative Frequency Frequency Freq (f) Mid – interval Class interval (Age) – – – – – – Total Text Book : Basic Concepts and Methodology for the Health Sciences 3

Example : From the above frequency table, complete the table then answer the following questions: 1-The number of objects with age less than 50 years ? 2-The number of objects with age between years ? 3-Relative frequency of objects with age between years ? 4-Relative frequency of objects with age more than 69 years ? 5-The percentage of objects with age between years ? Text Book : Basic Concepts and Methodology for the Health Sciences 4

6- The percentage of objects with age less than 60 years ? 7- Variable is ………………… Type of variable is ……………………………….. 8. True class for the third interval (50-59) is ………. 9- The width of the interval ( W) ? 10- Sample size is …………………. Text Book : Basic Concepts and Methodology for the Health Sciences 5

the following histogram show the frequency distribution of pathologic tumor size ( in cm) for a sample of cancer patients:

Answer the following 1- The variable is ………………………………….. 2. The type of the variable is …………………………. 3- The sample size is ……………………………. 4- The name of the chart………………………….. 5- The number of cancer patient with lowest Pathologic tumor size is …………………….. 6-The percent of cancer patients with approximate level of Pathologic tumor size = 2……….