exercise:33b3ab62b4: Difference between revisions
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A die is loaded so that the probability of a face coming up is proportional to the number on that face. The die is rolled with outcome <math>X</math>. Find <math>Var(X)</math>. | A die is loaded so that the probability of a face coming up is proportional to the number on that face. The die is rolled with outcome <math>X</math>. Find <math>Var(X)</math>. | ||
<ul class="mw-excansopts"> | |||
<li>1.85</li> | |||
<li>2.22</li> | |||
<li>2.72</li> | |||
<li>3.15</li> | |||
<li>3.62</li> | |||
</ul> | |||
'''References''' | '''References''' | ||
{{cite web |url=https://math.dartmouth.edu/~prob/prob/prob.pdf |title=Grinstead and Snell’s Introduction to Probability |last=Doyle |first=Peter G.|date=2006 |access-date=June 6, 2024}} | {{cite web |url=https://math.dartmouth.edu/~prob/prob/prob.pdf |title=Grinstead and Snell’s Introduction to Probability |last=Doyle |first=Peter G.|date=2006 |access-date=June 6, 2024}} | ||
Latest revision as of 00:34, 25 June 2024
A die is loaded so that the probability of a face coming up is proportional to the number on that face. The die is rolled with outcome [math]X[/math]. Find [math]Var(X)[/math].
- 1.85
- 2.22
- 2.72
- 3.15
- 3.62
References
Doyle, Peter G. (2006). "Grinstead and Snell's Introduction to Probability" (PDF). Retrieved June 6, 2024.