Types of bonds are divided into three categories: good risk, medium risk, and po
ID: 3256876 • Letter: T
Question
Types of bonds are divided into three categories: good risk, medium risk, and poor risk. Assume that of a total of 12, 082 bonds, 6, 172 are good risk, 1, 108 are medium risk, and the rest are poor risk. One bond is chosen at random. What is the probability that the bond is not a poor risk? Write only a number as your answer Round to two decimal places (for example: 0.43). Do not write a percentage. Your answer: A group freshmen and sophomore students was selected and was asked whether they were a member of a student club. The following table was constructed: Find the probability than a randomly selected student forms the group is a freshman or is a member of a student club. Write only a number a your answer. Round to two decimal places. (for example 0.73). Do not write as a percentage your answer:Explanation / Answer
Solution:-
1) The probability that a bond is not a poor risk is 0.6025.
Total number of bonds = 12082
Number of bonds that are not poor = 6172 + 1108
Number of bonds that are not poor = 7280
The probability that a bond is not a poor risk = 7280/12082
2) The probability that a randomly selected student forms a group is freshman or is a member of students club is 0.786.
Number of students in freshman = 11
Number of students in students club = 14
Number of student forms a group is freshman or is a member of students club = 11 + 14 - 3 = 22
Total students = 28
The probability that a randomly selected student forms a group is freshman or is a member of students club = 22/28
The probability that a randomly selected student forms a group is freshman or is a member of students club = 0.786
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