In a group of 15 people, the ages are: 20, 21, 21, 22, 22, 22, 23, 24, 25, 25, 2

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Question: In a group of 15 people, the ages are: 20, 21, 21, 22, 22, 22, 23, 24, 25, 25, 25, 26, 27, 28, 29. What is the mode of the ages? (2022)

Options:

Correct Answer: 25

Exam Year: 2022

Solution:

The age 22 appears 3 times, which is more than any other age, so the mode is 22.

In a group of 15 people, the ages are: 20, 21, 21, 22, 22, 22, 23, 24, 25, 25, 25, 26, 27, 28, 29. What is the mode of the ages? (2022)

In a group of 15 people, the ages are: 20, 21, 21, 22, 22, 22, 23, 24, 25, 25, 25, 26, 27, 28, 29. What is the mode of the ages? (2022)

Step 1: Write down the ages of all 15 people: 20, 21, 21, 22, 22, 22, 23, 24, 25, 25, 25, 26, 27, 28, 29.
Step 2: Count how many times each age appears in the list.
Step 3: The age 20 appears 1 time.
Step 4: The age 21 appears 2 times.
Step 5: The age 22 appears 3 times.
Step 6: The age 23 appears 1 time.
Step 7: The age 24 appears 1 time.
Step 8: The age 25 appears 3 times.
Step 9: The age 26 appears 1 time.
Step 10: The age 27 appears 1 time.
Step 11: The age 28 appears 1 time.
Step 12: The age 29 appears 1 time.
Step 13: Compare the counts of each age to find the highest count.
Step 14: The highest count is 3, which corresponds to the ages 22 and 25.
Step 15: Since 22 appears 3 times and is the lowest age with the highest count, the mode is 22.

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