Lemma
EasyCounting & chance
#1895 · Probability · Counting & chance

Coins Distributed in Purses Part 1

If coins have been distributed into purses, into each, find the chance that two specified coins will be found in the same purse.

~8 minAnswer checked instantlyCombinationsConditional Probability

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XXXII. Probability, Examples XXXII.d, No. 17 (part 1)

Stuck? A gentle nudge
Something off?
Workspace
Your answer
Loading the math keyboard…

Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.

Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).