The table shows data for six students at Lincoln High School. Student ID Number Year in School Homeroom Number
137
9
27
148
11
35
186
9
27
231
12
30
247
10
20
249
11
32
For the given set of students, is the relation consisting of all ordered pairs in the form (Year in School, Student ID Number) a function? Explain your

No, cach x-value has 1 y-value
Yes, cach x-value has 1 y-value
No, an x-value has more than 1 y-value
Yes, an x-value has more than 1 y-value

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?