**In a survey, 55% of the voters support a particular referendum. If 40 voters are chosen at random, and X is the number of voters that support this referendum, find the mean and variance of X.**

- All categories
- Pre-Algebra Answers (11,956)
- Algebra 1 Answers (24,294)
- Algebra 2 Answers (10,079)
- Geometry Answers (4,871)
- Trigonometry Answers (2,497)
- Calculus Answers (5,577)
- Statistics Answers (2,837)
- Word Problem Answers (9,135)
- Other Math Topics (5,436)

...