Descriptive Sta...

Statistics studies _________ information.

In an ordered series, the data are ________.

The following series is of the type of 

The arithmetic mean of the observations $$10,8,5,a,b$$ is $$6$$ and their variance is $$6.8$$, then $$ab=$$

 Study the following graph carefully to answer these questions.
Production (in lakh tonnes) of six units of a company in 2006 and 2007.
What is the total production of units C, D and E together for both the years? (In lakh tonnes)

The mean and standard deviation of random variable $$X$$ are $$10$$ and $$5$$ respectively, then $$E\left (\dfrac {X - 15}{5}\right )^{2} =$$ _______.

In tabulation, the source of the data, if any, is shown in the ________.

What percentage of values is less than 4th decile?

In a frequency distribution with open ends, one cannot find out ______.

Choose the correct answer from the alternatives given.
Directions for questions 71 to 75: Study the graph and answer the questions.
What was the approximate percent increase in sales of Cool-sip in 1990 over its sales in 1989?