Descriptive Sta...

Observe the adjoining bar graph, showing the number of one-day international matches played by cricket teams of different countries. Choose the correct answer from the given four options:
How many more matches were played by India than Pakistan?

Observe the following pictograph which shows the number of ice cream cones sold by school canteen during a week. Chose the correct answer from the given options:
If the cost of one ice cream cone is $$Rs. 20,$$ then the sale value on friday was:

Observe the adjoining bar graph, showing the number of one-day international matches played by cricket teams of different countries. Choose the correct answer from the given four options:
Which country played maximum number of matches?

Observe the adjoining bar graph, showing the number of one-day international matches played by cricket teams of different countries. Choose the correct answer from the given four options:
Ratio of the number of matches played by India to the number of matches played by Sri Lanka is:

In a series $$\sum x^{2} = 100, n = 5 $$ and  $$\sum x = 20 $$ , then standard deviation is 

Standard deviation of data $$6, 10, 4, 7, 4, 5$$ is - 

The exam scores of all $$500$$ students were recorded and it was determined that these scores were normally distributed. If Jane's score is $$0.8$$ standard deviation above the mean, then how many, to the nearest unit, students scored above Jane?(Area under the curve  below $$z=0.8 \ is \ 0.7881$$)

Find the variance of the series 5, 8, 11, 14 and 17.....

Which two years did the least number of boys attend the convention?

The probability distribution of a random variable $$X$$ is given below: