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- The average starting annual salary of graduates in engineering was approximately what percent greater than that of graduates in the humanities?

- 33%
- 50%
- 60%
- 80%
- 90%

Answer: D

Humanities is around 45 and Engineering is around 80

35 higher than 45 is 35/45 x 100 = 78

- If 15% of the graduates in the sciences were majoring in evolutionary biology, then approximately how many 2016 graduates were evolutionary biology majors? (round your answer to the closest integer)

Answer: 195

25% of 5192 students were in the sciences. That’s 1298 students.

15% of them majored in evolutionary biology. That’s 15/100 x 1298 = 194.7

- What is the approximate average combined annual salary for students majoring in the sciences and in engineering?

- $73,000
- $67,000
- $82,000
- $61,000
- $46,000

Answer: A

Don’t waste time in massive calculations of finding the numbers of students in each field finding the weighted average, etc. It’s a simple calculation if you bear in mind the total number of students is the same (=5,192) so it can be ignored altogether.

Average = (23 x 80 + 25 x 65)/(23+25) = 72.18

NOTE: because 23 and 25 are so close even a simple average of 65 and 80 would have given 72.5

- The angle at the centre of the sector representing engineering majors is how much larger than the angle at the centre of the sector representing humanities majors?

- 27
^{0} - 36
^{0} - 40
^{0} - 47
^{0} - 54
^{0}

Answer: D

Business Management is 31% and Humanities is 18%

Difference = 13%

13% of 360^{0} = 46.8^{0}

- Which of the following can be inferred from the data above? Select all that apply.

- The average starting annual salary for all graduates was above $40,000.
- The range of average starting salaries for all graduates was less than $25,000.
- The number of graduates majoring in business management exceeded the number of graduates majoring in engineering by more than 500

Answer: A

A: The lowest average salary is for Humanities majors at around 45,000. TRUE

B: The range is the difference between the lowest average salary and the highest average salary

85,000 – 45,000 = 40,000 FALSE

C: Don’t calculate. For the number of business majors to exceed the number of engineering majors by 500 the difference in the % must be close to 10%. But the difference is 31% – 25% = 6% only. FALSE

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- 3a + 5
- 3a – 9
- 3a + 10
- 3a – 4
- 3a + 4

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