Algebra II : Mode
Study concepts, example questions & explanations for Algebra II
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Example Questions
Example Question #3 : Mode
A class of statistics students scored the following on their last test:
Calculate the mode for this data set.
The mode is the number that shows up more often than the others in a set of data.
If we put our data set in order we see:
98, 65, 85, 100, 76, 50, 88, 63, 70, 65, 70, 99, 82, 80, 78, 65, 94, 66
Becomes,
50, 63, 65, 65, 65, 66, 70, 70, 76, 78, 80, 82, 85, 88, 94, 98, 99, 100.
Therefore, 65 is the mode because it appears 3 times.
Example Question #1 : Mode
What is the mode of the following data set?
{9, 10, 4, 11, 7, 5, 15, 7, 2, 20, 11, 19, 7, 9}
7
9
11
2
7 and 9
7
Arrange the set in numerical order: {2, 4, 5, 7, 7, 7, 9, 9, 10, 11, 11, 15, 19, 20}.
You can then chart the frequency of each value.
Value (Frequency)
2 (1)
4 (1)
5 (1)
7 (3)
9 (2)
10 (1)
11 (2)
15 (1)
19 (1)
20 (1)
From this you can see the most common value, which is the mode, is 7.
Example Question #6 : Mode
A set comprises ten elements, which are
where 
What can 
The set cannot be bimodal for any value of N.
12 appears in the set most frequently, appearing three times; 19 is second in frequency, appearing twice. 10, 11, 18, and 20 appear once each.
The only number we can set 
Example Question #2 : Mode
Within the set of data of the hours worked per week by the staff, what is the mode?
Mode is a value that appears most often in a set of data.
In this case, 40 appears 4 times in the set of data, more than any other number.
Example Question #3 : Mode
Example Question #4 : Mode
Ms. Anderson's class scored the following on her test:
What is the mode for this data?
The mode is the value that shows up the most often in a set of data.
73 appears 3 times, where no other value appears as often.
Therefore, 73 must be the mode.
Example Question #5 : Mode
Jason received his scores from the semester. On the last 10 projects, he scored 
The mode is the number that is found most often.
In this case, 8 is found 4 times, 9 is found 2 times, 10 is found 2 times, 3 is found once, and 5 is found once.
Thus, 8 is the mode.
Example Question #6 : Mode
Find the mode in the data set:
No mode.
The mode is the number that occurs most frequently in the data set.
The only number that is repeated in this data set is 
The correct answer is:
Example Question #7 : Mode
Find the mode:
No mode.
No mode.
The definition of mode in a data set is the most frequent number that occurs in that data set.
Since there is one of each number, there is no number that happens more than once. Therefore, there is no mode.
The correct answer is: No mode.
Example Question #8 : Mode
Find the mode of the following set of numbers:
The mode of a set is the number that appears most often in the set.
In this case, the number 5 appears the most at 3 times.
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