SOLUTION: A study was done to determine the efficacy of two different headache tablets A and B. The 2500 study participants used the two tablets (at different times) over the period of the

Algebra.Com
Question 1182140: A study was done to determine the efficacy of two different headache tablets A and B. The 2500 study participants used the two tablets (at different times) over the period of the study. Results indicated that 1,637 reported relief from tablet A, 1,748 reported relief from tablet B, and 1,122 reported relief from both tablets A and B. If a study participant is selected at random, what is the probability that he/she reported relief from tablet A or tablet B? Round your answer to four decimal places.
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.

    P(a or B) = P(A) + P(B) - P(A and B) =  +  -  =  = 0.9052.    ANSWER

Solved.



RELATED QUESTIONS

QUESTIONS 4 It is recently found that eating eggs does not increase a person’s... (answered by ikleyn)
You are recruiting volunteers for a study on food choices at the grocery store. You need (answered by mathmate)
2. You are recruiting volunteers for a study on food choices at the grocery store. You... (answered by mathmate)
2. You are recruiting volunteers for a study on food choices at the grocery store. You... (answered by stanbon)
34. Sleep Deprivation In a recent study, volunteers who had 8 hours of sleep were (answered by stanbon)
A medical researcher conducted a study to understand the efficacy of a new medicine. for... (answered by math_tutor2020)
In a study to assess the effectiveness of garlic for lowering cholesterol, 60 adults were (answered by Boreal)
A crossover trial is conducted to compare an experimental medication for migraine... (answered by rjernej1)
I really need help with this problem: You are conducting a study to see if students do (answered by Boreal,stanbon)