What's Your Major? The table contains the percentages of students majoring in (i) Mathematics/Statistics/Computer Science, (ii) Biological Sciences, and (iii) Psychology, for a sample of 10 states. Use this information for Exercises 66–71.
207
| State | Math/Stat/ Comp Sci |
Biological Sci |
Psychology |
|---|---|---|---|
| Alaska | 2.0 | 11.0 | 5.5 |
| Connecticut | 4.1 | 5.3 | 5.7 |
| Hawaii | 2.9 | 6.9 | 5.2 |
| Idaho | 3.7 | 9.6 | 3.2 |
| Maryland | 5.7 | 7.1 | 4.8 |
| Montana | 2.7 | 11.1 | 4.1 |
| New Jersey | 5.3 | 5.3 | 4.7 |
| Oregon | 3.2 | 8.4 | 5.4 |
| Virginia | 5.5 | 5.4 | 4.7 |
| Wyoming | 2.2 | 12.2 | 3.6 |
statemajors
68. Calculate the correlation coefficient between the Math/Stat/Comp Sci majors and the Psychology majors. Was your intuition in Exercise 67 confirmed?