M1
1 mark · average 0.7 29% scored 0
The question in our own words · page 5
\(X\) takes the values \(0,1,2,3\) with probabilities \(\frac4k,\ \frac{2k}{75},\ \frac{k}{75},\ \frac2k\). With \(k=15\), find \(\text{E}(X)\). No calculator.
Source: VCAA 2025 VCE Mathematical Methods Examination 1, Question 4b(ii)
Open the VCAA paper ↗More from Methods 2025 Exam 1
Every question in this paper with how students scored ›Next: Question 5a Exponential equations and inverses ›Tell me what’s confusing beta feedback ↗