Freeflows

Problems

Sign in

Coin Toss Expected Value 1

Suppose that we win $ \$2$ if we flip a heads on a coin toss, but lose $\$ 1 $ if we flip tails. What is the expected value, in dollars, of our winnings after one flip?

1
2
3
+
4
5
6
-
7
8
9
$\frac{a}{b}$
.
0
=
%

$a^n$
$a^{\circ}$
$a_n$
$\sqrt{}$
$\sqrt[n]{}$
$\pi$
$\ln{}$
$\log$
$\theta$
$\sin{}$
$\cos{}$
$\tan{}$

$($
$)$
$[$
$]$
$\cap$
$\cup$
$,$
$\infty$