The total number of students surveyed is 5 + 5 + 7 + 1 = 18.
The probability of a randomly selected student being irresponsible and having 0 siblings is the number of students who are irresponsible and have 0 siblings divided by the total number of students surveyed.
Probability = Number of irresponsible students with 0 siblings / Total number of students
Probability = 5 / 18 = 5/18
Therefore, the probability that a randomly selected student is irresponsible and has 0 siblings is 5/18.
A sociology teacher asked his students to complete a survey at the beginning of the year. One survey question asked, "Do you consider yourself responsible?" Another question asked, "How many siblings do you have?"
0 siblings 1 or more siblings
Irresponsible 5 5
Responsible 7 1
What is the probability that a randomly selected student is irresponsible and has 0 siblings?
Simplify any fractions.
1 answer