M1
1 mark · average 0.8 27% scored 0
The question in our own words · page 7
\(X\) is binomial with \(6\) trials and probability of success \(\tfrac14\): \(X\sim\text{Bi}\left(6,\tfrac14\right)\). Find \(\text{var}(X)\). No calculator.
Source: VCAA 2025 VCE Mathematical Methods Examination 1, Question 6a
Open the VCAA paper ↗More from Methods 2025 Exam 1
Every question in this paper with how students scored ›Next: Question 6b Binomial distribution ›Tell me what’s confusing beta feedback ↗