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Standard XI

Mathematics

Venn Diagram

In a sample s...

Question

In a sample study about the coffee habits in two towns following data were observed:
Tabulate the observations.

Town A : 60% people were males

40% were coffee drinkers, and

26% were male coffee drinkers

Town B : 55% people were males,

30% were coffee drinkers and

20% were males coffee drinkers

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Solution

Habit ↓ Town A Town B

M F T M F T Total

Coffee Drinker 26 14 40 20 10 30 70

Non-Coffee 34 26 60 35 35 70 130

Total 60 40 100 55 45 100 200

where,
M represents 'Male'
F represents 'Female'
T represents 'Total'

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Town A	:	60% people were males
		40% were coffee drinkers, and
		26% were male coffee drinkers
Town B	:	55% people were males,
		30% were coffee drinkers and
		20% were males coffee drinkers

Habit ↓	Town A			Town B
Habit ↓	M	F	T	M	F	T	Total
Coffee Drinker	26	14	40	20	10	30	70
Non-Coffee	34	26	60	35	35	70	130
Total	60	40	100	55	45	100	200

In a sample study about the coffee habits in two towns following data were observed: Tabulate the observations. Town A : 60% people were males 40% were coffee drinkers, and 26% were male coffee drinkers Town B : 55% people were males, 30% were coffee drinkers and 20% were males coffee drinkers

Habit ↓ Town A Town B M F T M F T Total Coffee Drinker 26 14 40 20 10 30 70 Non-Coffee 34 26 60 35 35 70 130 Total 60 40 100 55 45 100 200 where, M represents 'Male' F represents 'Female' T represents 'Total'

Habit ↓ Town A Town B

M F T M F T Total

Coffee Drinker 26 14 40 20 10 30 70

Non-Coffee 34 26 60 35 35 70 130

Total 60 40 100 55 45 100 200

where,
M represents 'Male'
F represents 'Female'
T represents 'Total'