
[ Examples with
steps ]:
Calculate Mean for
1, 1, 2, 4, 7 (Sample
A) 
Calculate Median for
1, 1, 2,
4, 7 (Sample C1) 
Step 1: Compute the sum of all
the terms.
i.e. 1 + 1 + 2 + 4 + 7 = 15
Step 2: Count the terms.
i.e. 5
Step 3: Compute the Mean or Average by dividing the sum with the
count. i.e. 15 /
5 = 3

Step 1: Count the terms and find
if the count is even or odd. Here Count is 5 and its odd.
Step 2: Make sure that the terms are properly sequenced.
Step 3: For odd count, Median is the middle term i.e.
2 
Calculate Mode for
1, 1, 1, 2, 4, 7, 7
(Sample B) 
Calculate Median for
1, 1, 2,
4, 7, 8
(Sample C2) 
Step 1: Find the terms that
repeat more than one time. i.e 1 repeats three times and 7 repeats 2 times.
Step 2: Mode is the term that repeat the most from these
terms. i.e. since 1 repeats that most times, mode is
1
Note: If no term repeats,
there is no mode. 
Step 1: Count the terms and find
if the count is even or odd. Here Count is 6 and its even.
Step 2: Make sure that the terms are properly sequenced.
Step 3: For even count, Median is the sum of the
middle pair divide by 2
(a) Find the middle pair i.e. 2, 4
(b) Add the numbers in the middle pair i.e. 2 + 4 =
6
(c) Median is
i.e.
6 / 2 = 3 
(a) 1, 2, 3, 3, 3, 4, 5
(b) 1, 2, 3, 3, 4, 5
(c) 1, 2, 2, 4, 4, 5
(d) 1, 2, 3, 4, 5

