Question

An event manager is tracking participation in a tournament by age group. The manager created the following histogram:


Histogram with title Tournament Participants, horizontal axis labeled Age Group (year) with bins 0 to 19, 20 to 39, 40 to 59, and 60 to 79 and vertical axis labeled Number of People with values from 0 to 60 at intervals of 10. The first bin goes to 30, the second goes to 50, the third goes to 40, and the last goes to 10.


What percentage of the tournament participants are under the age of 20? Round to the nearest whole percent.


10%

23%

30%

77%

Answer 1

Round to the closest whole percent, 23% of the participants in the event are under the age of 20.

Define the term percentage of the number?

• Rather than being expressed as a fraction, a percentage is a piece of a whole presented as a number ranging from zero and 100.
• None of this is zero percent; everything is 100 percent; half of something is 50 percent; and nothing is zero percent.
• You divide the part of the overall number by the entirety and multiply the result by 100 to get the percentage.

For the stated question-

Total number of people = 30 + 50 + 40 + 10

Total number of people = 130

Number of participants are under the age of 20 = 30.

Let 'x' be the % of the participants are under the age of 20.

Thus,

x% of 130 = 30

x = 30 x 100 / 130

x = 23.07

x = 23%

Thus, round to the closest whole percent, 23% of the participants in the event are under age of 20.

To know more about the percentage of the number, here

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