Based on the sample data, we can calculate the proportion of students who prefer Movie B:
Proportion of students who prefer Movie B = Number of students who prefer Movie B / Total number of students surveyed
Proportion of students who prefer Movie B = 63 / (22 + 63 + 29 + 26) = 63 / 140 ≈ 0.45
Now, we can use this proportion to estimate the number of students on campus who would prefer Movie B:
Number of students who prefer Movie B = Proportion of students who prefer Movie B * Total number of students on campus
Number of students who prefer Movie B = 0.45 * 900 ≈ 405
Therefore, we would expect around 405 students on campus to prefer Movie B.