The prices of three jacket styles are $42, $60 and $84 the probability of choosing a $42 jacket is 1/6 the probability of choosing a $60 jacket is 1/4 the probability of choosing an $84 jacket is 7/12

a) $71
b) $63
c) $62
d) $60

Option A is the answer.

Step-by-step explanation:

The prices of three jacket styles are $42, $60 and $84.

The probability of choosing $42 value jacket is 1/6.

This means that expected value will be,

And the value of $60 will be

Similarly, the expected value of $84 will be

And combined expected value will be the sum of these three.

dollars (expected value of jacket)

So, the answer is option A.

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

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