Quiz 2 solutions

2026-02-05 07:17:55 -05:00
parent 6e70beeedc
commit 86ce1ddc46
3 changed files with 207 additions and 1 deletions
@@ -307,7 +307,7 @@
          Let <m>N</m> be the number of heads in <m>n</m> coin flips with bias <m>p</m>.
          Then <m>N\sim \Bin(n, p)</m>.
          <md>
-            <mrow> \E)N) = \sum_{i=0}^n i\cdot b(i; n, p) = \sum_{i  = 0}^n i \cdot {n \choose i} p^i (1-p)^{n - i}. </mrow>
+            <mrow> \E(N) = \sum_{i=0}^n i\cdot b(i; n, p) = \sum_{i  = 0}^n i \cdot {n \choose i} p^i (1-p)^{n - i}. </mrow>
          </md>
          Gross.
        </p>