Question

Bobby is testing the effectiveness of a new cough medication. There are 100 people with a cough in the study. Seventy patients received the cough medication, and 30 other patients did not receive treatment. Thirty-four of the patients who received the medication reported no cough at the end of the study. Twenty of the patients who did not receive medication reported no cough at the end of the study. What is the probability that a patient chosen at random from this study took the medication, given that they reported no cough?

Answer 1

I got 63%.
Is this correct

Answer 2

@anybody

Answer 3

make a table

Answer 4

The way I did it was by calculating how many people in total said that they had no couth at the end of the study. and then I divided the amount of people who received the medication and said that they had no couth by that amount.

Answer 5

ok

Answer 6

Was this method correct
I got 0.63

Answer 7

checking

Answer 8

yes I got .629 as well

Answer 9

Great!
Thanks for you Help

Answer 10

the amount of people who received the medication and said that they had no cough divided by the total number of people who reported no cough.