The mode of the observations 26, 26, 22, 21, 31, 24, 21, 28, 28, 30, 33, 22, 25, 23 and 21 is:4285
21
To determine the mode of a given set of observations, we must identify the number that appears most frequently. The dataset provided is: 26, 26, 22, 21, 31, 24, 21, 28, 28, 30, 33, 22, 25, 23, and 21.
Let's count the frequency of each number:
- 21 occurs 3 times.
- 22 occurs 2 times.
- 23 occurs 1 time.
- 24 occurs 1 time.
- 25 occurs 1 time.
- 26 occurs 2 times.
- 28 occurs 2 times.
- 30 occurs 1 time.
- 31 occurs 1 time.
- 33 occurs 1 time.
From the above counts, we can see that the number 21 appears more frequently than any other number, appearing exactly 3 times.
Thus, the mode of the observations is 21.
Therefore, the correct answer is 21.
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Important Questions from Elementary Statistics
In a colony 5 families have 1 child, 7 families have 2 children, 8 families have 3 children and 3 families have 4 children.What is the mode of the number of children.
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A. 5 and 5
B. 3 and 5
C. 5 and 4
D. 3 and 4
For which set of numbers do the mean, median and mode all have the same value?
The median of 5, 8, 25, 22, 34, 18 is
Find the mean of first 5 two-digit multiples of 4.
