Question 1015748
Find the probability of the 3 prizes
{{{P(1)=1/100}}} $500 prize
{{{P(2)=2/100}}} $100 prize
{{{P(3)=4/100}}} $25 prize
{{{P=100/100-(1+2+4)/100=93/100}}} No prize
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{{{E=(500-10)(1/100)+(100-10)(2/100)+(25-10)(4/100)+(-10)(93/100)}}}
{{{E= 4.90 + 1.80 +0.6 -9.3 }}}
{{{E=-2 }}}