Any number chosen randomly without any design or process is called a random number.
Italian, = 9/20
Mexican, = 5/20
American, = 3/20
French, = 2/20
and
Ethnic, 1/20
Suppose we choose as the random number then according to the given data
Italian,45% = 45/100 = 9/20
Mexican, 25% =25/100= 1/4× 5/5= 5/20
American, 15% = 15/100= 3/20
French, 10% = 10/100 = 1/10 = 2/20
and
Ethnic, 5% = 5/100 = 1/20
If we add the fractions it sums up to 1 which shows their true probability.
The sum of probability can never be greater than 1 . It is always equal to 1.
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