The amounts of rainfall (in mm) in a town on 10 consecutive days are as follows:

8.5, 0, 6.8, 3.2, 4.8, 10.5, 76.2, 9.4, 0, 1.2
Use a suitable measure to throw light on the central tendency of the data.

In a community support project, the average grants (in Rs.) received by the male and the female beneficiaries were 5,200 and 5,800 respectively, while the average grant received by all the beneficiaries was 5,560. What percentage of beneficiaries were females?

As high as 45% of the under-5 children, brought to the outdoor clinics of 4 major State-run hospitals in Kolkata last year, were found to be victims of malnutrition. Incidence of malnutrition among the under-5 children in the city must, therefore, be alarmingly high. Explain why you support the argument, or disagree with it.

A union leader complained; that the owners of this factors have adopted a policy of gradually decreasing the wages of its workers is amply evident from the fact that the average monthly wage of the workers has dropped down to Rs. 2,530 in January, 2005. Comment on the validity of the argument.

The following table shows the average percentage of family expenditure, as also percentage increase in price in 2005 compared to 2000, for the major heads of expenditure for the urban middle class families in a State in India. Calculate the percentage increase in cost of living for this segment of population in 2005 compared to 2000.

From the following frequency distribution of 260 housewives of a locality according to their TV-watching habit -

(i) draw the graph of culminative frequencies of less than type:

Estimate using the above graph -

(ii) the median of the distribution;

(iii) number of housewives spending at most 18 hours per week watching TV.

Present the following information using suitable diagram:

In an opinion survey regarding a proposed civil measure to be introduced, altogether 2878 persons took part of which 1652 were males. 1226 persons voted against the proposal of which 796 were males. 1425 persons voted for the proposed measure. 156 females were undecided in their opinion.

1. Put the above information in a neat statistical table. From the table, calculate -
2. The percentage of males among those voting for the proposal;
3. The percentage of those voting for the proposal among the males.

Arithmetic means of two completely different sets of values may be same.When extreme values are taken into consideration, the arithmetic is largely affected. I it ment or demerit of arithmetic mean and give reasons for you statement

The mean age of a group of 5 boys is 16 years. Another by joins the group and then the mean age of the group becomes 18 years. How old is the newcomer ?