Solution

Given:• In the given table, the distribution of blood types within a certain population is shown

To find:• The probability that a person chosen at random from the population will be a person with blood type AB

Approach and Working:As the total population should represent 100%, we can write

• 45% + 40% + 11% + x% = 100%

Or, x% = 100% - 96% = 4%

Therefore, if a person is chosen at random from the population,

• The probability that the chosen person’s blood group will be type AB = \(\frac{4%}{100%}\) = 0.04

Hence, the correct answer is option A.

Answer: A
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