Descriptive Sta...

The Multiplicative Model of a time series is expressed is :

Study the following graph carefully and answer the question given.
What is the percentage decline in production by company C from $$1995$$ to $$1996$$?

In a group, $$2$$ students spend Rs$$8$$ daily, $$3$$ students spend Rs$$10$$ daily and $$5$$ students spend Rs$$6$$ daily. The average spending of all $$10$$ students is _______.

The $$P_82$$ for the following distribution is

Study the following graph carefully and answer the question given.
What was the difference between the number of B type tyres manufactured in $$1994$$ and $$1995$$?

Time series is an important statistical technique which is widely used by _________.

Study the following graph carefully and answer the question given.
The total number of all the three types of tyres manufactured was the least in which of the following years?

Study the following graph carefully and answer the question given.
In which of the following years was the percentage production of B type of C type tyres the maximum?

The standard deviation of the data:
$$x:$$ $$1$$  $$a$$  $${a}^{2}$$........$${a}^{n}$$
$$f:$$  $${ _{  }^{ n }{ C } }_{ 0 }$$  $${ _{  }^{ n }{ C } }_{ 1 }$$.....$${ _{  }^{ n }{ C } }_{ n }$$ is

Study the following graph carefully and answer the question given.
In which of the following pairs of companies the difference between average productions for the three years is maximum?