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Recent questions tagged q7-b
ASK
If A and B are mutually exclusive events,$P(A)=0.35$ and $P(B)=0.45$ find P(B')
cbse
math
class11
ch16
probability
exemplar
q7-b
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
The length \(x\) of a rectangle is decreasing at the rate of 5 cm/minute and the width y is increasing at the rate of 4 cm/minute. When \(x = 8\)cm and \(y = 6\)cm, find the rates of change of (b) the area of the triangle.
cbse
class12
bookproblem
ch6
sec1
q7
q7-b
p198
sec-a
easy
math
asked
Jul 5, 2013
by
sreemathi.v
1
answer
If $y=e^{m\cos^{-1}x}$,prove that $(1-x^2)\large\frac{d^2y}{dx^2}-\normalsize x\large\frac{dy}{dx}\normalsize=m^2y.$
isc
class12
modelpaper
2003
part-2
sec-a
q7
q7-b
asked
Apr 22, 2013
by
sreemathi.v
0
answers
If $x=\sin^3t$ and $y=a\cos^3t$,find $\large\frac{dy}{dx}$.
isc
class12
modelpaper
2004
part-2
sec-a
q7
q7-b
asked
Apr 19, 2013
by
sreemathi.v
0
answers
There are two series of index numbers : P for price index and S for stock of a commodity.The mean and standard deviation of P are 100 and 8 and of S are 103 and 4 respectively.The correlation coefficient between the two series is 0.4,with these data,obtain the regression lines of P on S and S on P.
isc
class12
modelpaper
2005
sec-a
q7
q7-b
asked
Apr 17, 2013
by
sreemathi.v
0
answers
The following table shows the sales and advertisement expenditure of a firm :
isc
class12
modelpaper
2006
sec-a
q7
q7-b
asked
Apr 16, 2013
by
sreemathi.v
0
answers
Given two regression lines $4x+3y+7=0$ and $3x+4y+8=0$,determine :
isc
class12
modelpaper
2007
sec-a
q7
q7-b
asked
Apr 16, 2013
by
sreemathi.v
0
answers
The data for marks in Physics and History obtained by ten students are given below :
isc
class12
modelpaper
2008
sec-a
q7
q7-b
asked
Apr 15, 2013
by
sreemathi.v
0
answers
If the two regression lines of a bivariate distribution are $4x-5y+33=0$ and $20x-9y-107=0$,
isc
class12
modelpaper
2009
sec-a
q7
q7-b
asked
Apr 12, 2013
by
sreemathi.v
0
answers
Calculate Spearman's coefficient of rank correlation from the following data and interpret the result :
isc
class12
modelpaper
2010
sec-a
q7
q7-b
asked
Apr 12, 2013
by
sreemathi.v
0
answers
Compute Karl Pearson's Coefficient of correlation between sales and expenditures of a firm for six months
isc
class12
modelpaper
2011
sec-a
q7
q7-b
asked
Apr 11, 2013
by
sreemathi.v
0
answers
The following results were obtained with respect to two variable x and y :$\sum x=30,\sum y=42,\sum xy=199,\sum x^2=184,\sum y^2=318,n=6.$
isc
class12
modelpaper
2012
sec-a
q7
q7-b
asked
Apr 10, 2013
by
sreemathi.v
0
answers
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