The following two-way contingency table gives the breakdown of the population of adults in a town according to their highest level of education and whether or not they regularly take vitamins

e1s2kat26 2020-12-29 Answered

The following two-way contingency table gives the breakdown of the population of adults in a town according to their highest level of education and whether or not they regularly take vitamins:
EducationUse of vitamins takesDoes not takeNo High School Diploma0.030.07High School Diploma0.110.39Undergraduate Degree0.090.27Graduate Degree0.020.02
You select a person at random. What is the probability the person does not take vitamins regularly?

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Expert Answer

Ayesha Gomez
Answered 2020-12-30 Author has 104 answers
Step 1
From the given information
EducationUse of vitamins takesDoes not takeTotalNo High School Diploma0.030.070.10High School Diploma0.110.390.50Undergraduate Degree0.090.270.36Graduate Degree0.020.020.04Total0.250.751
Step 2
The probability that the person does not take vitamins regularly is obtained as follows: P(Does not take vitamins regularly)=0.07+0.39+0.27+0.002=0.75
Thus, the probability that the person does not take vitamins regularly is 0.75
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