Presentation of Data Test

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For an experiment in Botany, two different plants, plant A and plant B were grown under similar laboratory conditions. Their heights were measured at the end of each week for 3 weeks. The results are shown by the following graph.

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A courier person cycles from a town to a neighboring suburban area to deliver a parcel to a merchant. His distance from the town at different times is shown by the following graph.

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The following pie diagram represents expenditure on different items in constructing a building. Answer the following questions.

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A professor keeps data on students tabulated by performance and sex of the student. The data is kept on a computer disk, but unfortunately some of it is lost because of a virus. Only the following could be recovered.

		Performance		Total
	Average	Good	Excellent
Male			10
Female				32
Total		30

Picnic buttons were pressed but to no avail. An expert committee was formed, which decided that the following facts were self-evident : Half the students were either excellent of good. 40% of the students were females. One third of the male students were average.
Female students $$=$$ 32 which is 40% of total students. Hence
total number of students $$=\displaystyle \frac{32}{0.4}=80$$
Hence males $$=$$ (80-32)$$=$$48. It is further given, that half the students were either excellent or good and one third of the male students were average. Hence the table can be completed as under :

		Performance		Total
	Average	Good	Excellent
Male	16	22	10	48
Female	24	8	-	32
Total	40	30	10	80

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A courier person cycles from a town to a neighboring suburban area to deliver a parcel to a merchant. His distance from the town at different times is shown by the following graph.

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