Obtain domain, co - domain and range for $f: P \rightarrow Q, P=\left\{-\frac{1}{2}, 1, \frac{1}{2}, \frac{3}{2}\right\} ; Q=\left\{-\frac{1}{5}, 1, \frac{1}{3^3}, 3\right\}, f(x)=\frac{ x }{2- x }$
→The measurements of height (in centimeters) of $10$ soldiers are given below: $160, 175, 158, 165, 170,166, 173, 176, 163, 168$ Find the mean deviation of the heights of the soldiers.
→Classify the following data by taking the classes $\text{1—10, 11—20,……. 19, 9, 41, 8, 29, 24, 65, 52, 82, 77, 64, 79, .20, 26, 75, 6, 18, 53, 41, 28, 21, 27, 19, 13,44, 59, 73, 81, 86, 36, 70, 83, 16, 11, 47, 23, 51, 33, 23, 38.}$
→From a population of $175$ units, to obtain a $4 %$ simple random sample without replacement use the following random numbers:
$160, 235, 715, 547, 1295, 197, 975, 358, 275, 108.$
→$15$ random numbers are as follows:
$62, 18, 09, 112, 85, 108, 75, 99, 29, 82, 30, 03, 36, 171, 203.$
Using these random numbers obtain a simple random sample of $5$ units without replacement from the population of $50$ units.
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