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tester [92]
3 years ago
6

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?
how do you do it
Mathematics
2 answers:
Schach [20]3 years ago
8 0

Answer:

The answer is $ 1.90

Step-by-step explanation:

The expected value is the weighted average of the three products, and is calculated as all averagerages are:

50 customers pay $ 1.20  

30 customers pay $ 2.00

20 customer pay  $ 3.50

Expected Value = 50*1.20+30*2.00+20*3.50/100 = 60+60+70/100 =190/100

= 1.90 $

loris [4]3 years ago
6 0

this answer is $1.90

im not sure of the work to get to the answer

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Step-by-step explanation:

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<em>Additional comment</em>

If you allow 'a' to be irrational, then you can choose any value of 'c' that you like. Whole numbers begin at 0, so 0 is the lowest possible value of 'c'. If you don't like that one, you can choose c=1, which makes a=(√2)/2 ≈ 0.707, an irrational number. The problem statement here puts no restrictions on the values of 'a' and 'b'.

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Step-by-step explanation:

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