A survey is taken among customers of a fast-food restaurant to determine preference for hamburger or chicken. Of 200 respondents selected, 75 were children and 125 were adults. 120 preferred hamburger and 80 preferred chicken. 55 of the children preferred hamburger.
What is the probability that a randomly selected individual is an adult?
Too much information. The key sentence is
Of 200 respondents selected, 75 were children and 125 were adults.
so, 125/200 = 5/8 were adults
To find the probability that a randomly selected individual is an adult, we need to divide the number of adults by the total number of respondents.
We were given that there were 125 adults among the 200 respondents.
Therefore, the probability of randomly selecting an adult is:
Probability of being adult = Number of adults / Total number of respondents
= 125 / 200
= 0.625
So, the probability that a randomly selected individual is an adult is 0.625 or 62.5%.
To calculate the probability that a randomly selected individual is an adult, we need to divide the number of adults by the total number of respondents.
According to the given information, there were 125 adults among the 200 respondents.
Therefore, the probability that a randomly selected individual is an adult is:
P(adult) = Number of adults / Total number of respondents
P(adult) = 125 / 200
Simplifying the fraction gives us:
P(adult) = 5/8
So, the probability that a randomly selected individual is an adult is 5/8 or 0.625.