Question

Surgery Satisfaction Survey

Answer 1

Answer: D) 14.3%

Step-by-step explanation:

Conditional probability formula:

$P(B |\text{given that A}) =\dfrac{P(A\ and\ B)}{P(A)}$

So, The probability he or she was dissatisfied, given that he or she had hip surgery = $\dfrac{\text{Number of persons are dissatisfied and has hip surgery}}{\text{Total persons have hip surgery}}$

From the table, the number of persons who are dissatisfied and has hip surgery = 15

Total persons have hip surgery = 105

Required probability = $\dfrac{15}{105}\approx0.143$

In percent, Required probability = 14.3%

Correct option D) 14.3%