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KengaRu [80]
3 years ago
12

An ice cream parlor serves ice cream cones, milkshakes, and waffles with ice cream. The cost of an ice cream cone is $1.20, the

cost of a milkshake is $2.00, and the cost of a waffle with ice cream is $3.50. If 50% of the customers choose an ice cream cone, 30% choose a milkshake, and 20% choose a waffle with ice cream, what is the expected value of the cost of one item served at the parlor?
$0.99

$1.00

$1.90

$2.00
Mathematics
1 answer:
vivado [14]3 years ago
8 0
Expected value = Sum of Probability * Cost of each ice cream.

Expected value

=  50%* $1.20 + 30%* $2.00 + 2<span>0%* $3.50
</span>
=  0.50* $1.20 + 0.30* $2.00 + 0.2<span>0* $3.50
</span>
= $1.90

Expected value of the cost of one ice cream = $1.90 
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