A frequency bar graph is shown for the shoe size of a class of 9th graders at Brookwood High School. What is the probability that a student wears size 12 shoes (round to the nearest hundredth)?

Question

20-02-2017
Mathematics

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A frequency bar graph is shown for the shoe size of a class of 9th graders at Brookwood High School. What is the probability that a student wears size 12 shoes (round to the nearest hundredth)?

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MissPhiladelphia MissPhiladelphia · Answer 1 · 2017-03-04T20:02:07+01:00

I saw the image. I'll just write the values but I also attached the image needed for this problem.

shoe size frequency
7 7
8 16
9 19
10 27
11 33
12 35
total 137

Probability that a student wears size 12 shoes is 0.255 or 25.5%.

P = 35/137 = 0.255