Question

Calculate the measures of central tendency:
{1, 3, 4, 5, 2, 2, 7}

• A. 3
• B. 2
• C. 3.4

Answer 1

{1, 3, 4, 5, 2, 2, 7}

Mean = $\frac{1+3+4+5+2+2+7}{7}$
= $\frac{24}{7}$
= 3.4

Median: If we arrange the data in ascending order we get 1, 2, 2, 3, 4, 5, 7. Here 3 is the middle most value so the value of the median is 3.

Mode: A mode is an observation which occurs the most number of times in the given data set. Here number 2 occurs the maximum number of times. Therefore the value of the mode is 2.