Answer the question based on the information given in the following table A,B, C, D, E denote companies and 2006, 2007, 2008, 2009 and 2010 denote years.
Number of units manufactured(M) and Number of units sold (s)(in hundred) by five different companies over the years.
A A B B C C D D E E

M S M S M S M S M S
$2006$ $2.8$ $1.3$ $3.3$ $2.2$ $2.6$ $1.7$ $3.0$ $2.2$ $1.9$ $1.4$
$2007$ $3.2$ $2.0$ $2.4$ $1.6$ $2.2$ $1.5$ $2.5$ $1.9$ $2.0$ $1.7$
$2008$ $1.9$ $0.9$ $2.9$ $1.6$ $2.1$ $1.0$ $2.3$ $1.5$ $1.6$ $1.1$
$2009$ $1.0$ $0.4$ $2.4$ $1.3$ $2.8$ $1.4$ $2.1$ $1.2$ $3.2$ $2.5$
$2010$ $2.5$ $1.5$ $2.3$ $1.2$ $2.6$ $2.1$ $1.8$ $1.1$ $3.1$ $2.6$

What is the average number of units sold by company D over all the years together?

166

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158

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136

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147

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Solution

The correct option is B $158$
From the table,
Total number of units manufactured by company D over all the years together
= $2.2 + 1.9 + 1.5 + 12 + 1.1 = 7.9 \times 100 = 790$
$∴$ Average number of units sold by company D over all the year together = $\frac{790}{5} = 158$

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Similar questions

Q. Answer the question based on the information given in the following table A,B, C, D, E denote companies and 2006, 2007, 2008, 2009 and 2010 denote years.Number of units manufactured(M) and Number of units sold (s)(in hundred) by five different companies over the years.

	A	A	B	B	C	C	D	D	E	E
	M	S	M	S	M	S	M	S	M	S
$2006$	$2.8$	$1.3$	$3.3$	$2.2$	$2.6$	$1.7$	$3.0$	$2.2$	$1.9$	$1.4$
$2007$	$3.2$	$2.0$	$2.4$	$1.6$	$2.2$	$1.5$	$2.5$	$1.9$	$2.0$	$1.7$
$2008$	$1.9$	$0.9$	$2.9$	$1.6$	$2.1$	$1.0$	$2.3$	$1.5$	$1.6$	$1.1$
$2009$	$1.0$	$0.4$	$2.4$	$1.3$	$2.8$	$1.4$	$2.1$	$1.2$	$3.2$	$2.5$
$2010$	$2.5$	$1.5$	$2.3$	$1.2$	$2.6$	$2.1$	$1.8$	$1.1$	$3.1$	$2.6$

What is the approximate per cent increase in the number of units sold by company E in the year

2007

from the previous year?

Q.
Answer the question based on the information given in the following table A,B, C, D, E denote companies and 2006, 2007, 2008, 2009 and 2010 denote years.
Number of units manufactured(M) and Number of units sold (s)(in hundred) by five different companies over the years.

	A	A	B	B	C	C	D	D	E	E
	M	S	M	S	M	S	M	S	M	S
$2006$	$2.8$	$1.3$	$3.3$	$2.2$	$2.6$	$1.7$	$3.0$	$2.2$	$1.9$	$1.4$
$2007$	$3.2$	$2.0$	$2.4$	$1.6$	$2.2$	$1.5$	$2.5$	$1.9$	$2.0$	$1.7$
$2008$	$1.9$	$0.9$	$2.9$	$1.6$	$2.1$	$1.0$	$2.3$	$1.5$	$1.6$	$1.1$
$2009$	$1.0$	$0.4$	$2.4$	$1.3$	$2.8$	$1.4$	$2.1$	$1.2$	$3.2$	$2.5$
$2010$	$2.5$	$1.5$	$2.3$	$1.2$	$2.6$	$2.1$	$1.8$	$1.1$	$3.1$	$2.6$

The number of units sold(S) of company D in the year

2006

is what per cent of the number of units manufacture(M) by it in the year? (rounded off to two digits after decimal)

Q. Answer the question based on the information given in the following table A,B, C, D, E denote companies and 2006, 2007, 2008, 2009 and 2010 denote years.
Number of units manufactured(M) and Number of units sold(S) (in hundred) by five different companies over the years.

	A	A	B	B	C	C	D	D	E	E
	M	S	M	S	M	S	M	S	M	S
$2006$	$2.8$	$1.3$	$3.3$	$2.2$	$2.6$	$1.7$	$3.0$	$2.2$	$1.9$	$1.4$
$2007$	$3.2$	$2.0$	$2.4$	$1.6$	$2.2$	$1.5$	$2.5$	$1.9$	$2.0$	$1.7$
$2008$	$1.9$	$0.9$	$2.9$	$1.6$	$2.1$	$1.0$	$2.3$	$1.5$	$1.6$	$1.1$
$2009$	$1.0$	$0.4$	$2.4$	$1.3$	$2.8$	$1.4$	$2.1$	$1.2$	$3.2$	$2.5$
$2010$	$2.5$	$1.5$	$2.3$	$1.2$	$2.6$	$2.1$	$1.8$	$1.1$	$3.1$	$2.6$

What is the respective ratio of total number of units manufactured by company A and B together in the year

2009

to those sold by them in the same year?

	A	A	B	B	C	C	D	D	E	E
	M	S	M	S	M	S	M	S	M	S
$2006$	$2.8$	$1.3$	$3.3$	$2.2$	$2.6$	$1.7$	$3.0$	$2.2$	$1.9$	$1.4$
$2007$	$3.2$	$2.0$	$2.4$	$1.6$	$2.2$	$1.5$	$2.5$	$1.9$	$2.0$	$1.7$
$2008$	$1.9$	$0.9$	$2.9$	$1.6$	$2.1$	$1.0$	$2.3$	$1.5$	$1.6$	$1.1$
$2009$	$1.0$	$0.4$	$2.4$	$1.3$	$2.8$	$1.4$	$2.1$	$1.2$	$3.2$	$2.5$
$2010$	$2.5$	$1.5$	$2.3$	$1.2$	$2.6$	$2.1$	$1.8$	$1.1$	$3.1$	$2.6$

What is the total number of units manufactured by company C over all the years together?

Question 9
A company manufactures car batteries of a particular type. The lives (in years) of 40 such batteries were recorded as follows:
$\begin{matrix} 2.6 & 3.0 & 3.7 & 3.2 & 2.2 & 4.1 & 3.5 & 4.5 3.5 & 2.3 & 3.2 & 3.4 & 3.8 & 3.2 & 4.6 & 3.7 2.5 & 4.4 & 3.4 & 3.3 & 2.9 & 3.0 & 4.3 & 2.8 3.5 & 3.2 & 3.9 & 3.2 & 3.2 & 3.1 & 3.7 & 3.4 4.6 & 3.8 & 3.2 & 2.6 & 3.5 & 4.2 & 2.9 & 3.6 \end{matrix}$
Construct a grouped frequency distribution table for this data, using class intervals of size 0.5 starting from the intervals 2−2.5.

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The correct option is B 158From the table, Total number of units manufactured by company D over all the years together=2.2+1.9+1.5+12+1.1=7.9×100=790∴ Average number of units sold by company D over all the year together = 7905=158

The correct option is B $158$
From the table,
Total number of units manufactured by company D over all the years together
= $2.2 + 1.9 + 1.5 + 12 + 1.1 = 7.9 \times 100 = 790$
$∴$ Average number of units sold by company D over all the year together = $\frac{790}{5} = 158$