the results of surveying some members of a concert audience are told below, how many people are in the sample?

Question

when asked if they enjoyed the concert, 38 said yes, 12 said no [38 or 12 or 50 or 26?
what is the probability that a person in the audience enjoyed the concert? 19/25 or 6/19 or 19/6 or 6/25?
predict how many of the 725 people in the audience would say they enjoyed the concert [229 or 114 or 551 or 605?

Answer 1

the sample is all the people asked
38 + 12 = 50

50 people in the sample