Question

Find the mean of: 28, 24, 37, 42, 56, 59, 67, 28, 15, 32
A.32.5
B.38.8
C.42.3
D.None of these

Answer 1

Hint: Find the mean of the numbers. To find the mean of the number we will use the conventional formula where we add up all the values given to us and divide it by the number of terms given to us.

Formula used:
The formula for mean us the summation of all the values by the number of terms.
\[\text{ }\!\!~\!\!\text{ }\!\!~\!\!\text{ Mean=}\dfrac{1}{n}\sum\limits_{i=1}^{n}{{{X}_{i}}}\]


Complete step by step solution:
First step will be to add the numbers.
We will Divide the sum of values of all the terms by the total number of terms.
\[\begin{gathered}
  & \text{Mean}=\dfrac{28+\text{ }24+\text{ }37+\text{ }42+\text{ }56+\text{ }59+\text{ }67+\text{ }28+\text{ }15+\text{ }32}{10} \\
 & =38.8 \\
\end{gathered}\]
Thus, the mean of the given terms is 38.8.
Additional Information: Mean of given numbers is the average of the numbers.


Note: Mean of the numbers lies in between the highest and the lowest values available that means the mean of a given number of terms can neither be the highest or lowest value of that number system but it will lie somewhere between the given range of values.
In similar types of sums the most important part will be the addition of the total value of the given terms. then divide the sadded up value with the number of terms.