A social worker is interested in knowing the number of illiterates in a group of 1000 slum dwellers.
Then the radom variable is

An economist is interested in the random variable X, the number of unemployed graduates in a town of population 1 lakh. Then the random variable is

A sample of 10 batteries is selected X = Number of batteries that failed within 1000 hours. Then the random variable is

A highway-safety group is interested in studying the speed (in km/hour) of a car at a check point. Then the random variable is

The following table shows the number of illiterate persons in the age group in a town Draw a histogram to represent the above data.

An experiment consists of recording boy-girl composition of families with 2 children. i) What is the sample space if we are interested in knowing whether it is a boy or girl in the order of their births?. ii) What is the sample space if wé are interested in the number of girls in the family?

The mean income of a group of workers is bar(x) and that of another group is bar(y) . If the number of workers in the second group is 10 times the number of workers in the first group, then the mean income of the combined group is :

The mean income of a group of workers is bar(X) and that of another group is bar(Y) . If the number of workers in the second group is 10 times the number of workers in the first group, then the mean income of the combined group is

The mean income of a group of workers is bar(X) and that of another group is bar(Y) . If the number of workers in the second group is 10 times the number of workers in the first group, then the mean income of the combined group is

The given table presents the number of illiterate males in the age group (10-34) in a town. Draw a histogram to represent the above data.