Question

In a random sample of 500 people, 210 had type O blood, 223 had type A, 51 had type B, and 16 had type AB. Set up a frequency distribution for the data. Find the probability that a randomly selected person from the population has the given blood type. (Round your answer to 2 decimal places). Type O

Answer 1

The frequency distribution for the data is

Blood Type (X) Frequency(F) Relative Frequency P(X)
`= (F)/(T)`

O 210 0.42

A 223 0.45

B 51 0.102

AB 16 0.032

Total(T) 500

The probability is
`P(O) = 0.42`

Explanation:

From the question we are told that

The sample size is n = 500

The number with blood type O is k = 210

The number with blood type A is a = 223

The number with blood type AB is c = 16

The number with blood type B is b = 51

Generally the frequency table for this data is

Blood Type (X) Frequency(F) Relative Frequency P(X)
`= (F)/(T)`

O 210 0.42

A 223 0.45

B 51 0.102

AB 16 0.032

Total(T) 500

Generally the probability that a randomly selected person from the population has type O is
`P(O) = 0.42`