The prices of three jacket styles are $42, $60 and $84 The probability of choosing a $42 jacket is 1/6 the probability of choosi
2 answers:
Answer:
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.
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For a question like this, all you have to do is remember that a percentage is simply a fraction expressed as a decimal. So, all we have to do is:
, and then multiply our decimal answer by 100 to get the percentage:
= 0.34
0.34 x 100 = 34
Therefore 34% of the students walk to school.
I hope this helped and remember to please try and understand the maths that got the answer, not just writing the answer down :))
0.34 x 100 = 34
Therefore 34% of the students walk to school.
I hope this helped and remember to please try and understand the maths that got the answer, not just writing the answer down :))