Descriptive Sta...

Study the graph and answer the following questions.
How many less burgers were sold on Thursday than on Monday?

Find the Quartile Deviation for the following set of data:
$$490, 540, 590, 600, 620, 650, 680, 770, 830, 840, 890, 900$$

The given pictograph shows the number of students of class V participated in different games at Annual Diwali Mela. How many students tried the dart board?

Which of the following are positional measure of dispersion?

How many scooters were sold on Mondays?

How many school teachers does each smiley represent?

Four balls A, B, C and D are placed inside a container, one after another. The bar graph shows the weight of the container when empty and when different balls are placed in it. Which ball is the heaviest?

Which of the above states is the largest producer of wheat?

Study the graph carefully and answer the question given below it.

If $$b_{i} = 1 - a_{i}, na = \displaystyle \sum_{i = 1}^{n} a_{i}, nb = \displaystyle \sum_{i = 1}^{n}b$$, then $$\displaystyle \sum_{i = 1}^{n}a_{i}b_{i} + \displaystyle \sum_{i = 1}^{n} (a_{i} - a)^{2} =$$