The bar graph given below shows the data on the production of milk products (in thousand tonnes) by three branches, X,Y and Z, of a dairy product company over the years. Study the graph and answer the question.   

For which branch(es) of the dairy product company was the average production for the given 4 years the minimum?

Correct option is B

Solution:

The production data (in thousand tonnes) for the three branches over the years is as follows:

- Branch X: 50, 45, 55, 50

- Branch Y: 35, 45, 45, 55

- Branch Z: 45, 40, 40, 60

Calculate the Average Production

The average production for each branch is calculated using the formula:
​$$\text{Average Production} = \frac{\text{Sum of production over 4 years}}{4}$$​​

- For Branch X: $$\frac{200}{4} = 50$$​​

- For Branch Y: $$\frac{180}{4} = 45.00$$​​

- For Branch Z:  $$\frac{185}{4} = 46.25$$​​

Identify the Minimum Average

The minimum average production is 45.00 thousand tonnes, which is achieved by branch(es): Y,

The branch(es) with the minimum average production over the four years is/are: Y.