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Recent questions tagged q15-b

Find the equation of the tangent line to the curve \(y = x^2 - 2x +7\) which is $(b)\; perpendicular\; to\; the\; line\; 5y-15x=13$

asked Jul 11, 2013 by sreemathi.v

1 answer

Solve : $\large \frac{d^2y}{dx^2}\normalsize =\log x$

asked Apr 22, 2013 by sreemathi.v

0 answers

Solve the differential equation $(1-x^2)\large\frac{dy}{dx}\normalsize-xy=x$. Given $y=2$ when $x=0$.

asked Apr 19, 2013 by sreemathi.v

0 answers

A coin is tossed 5 times.What is the probability of getting at least three heads?

asked Apr 18, 2013 by sreemathi.v

0 answers

A company has two plants which manufacture scooters.Plant I manufactures 80% of the scooters while Plant II manufactures 20% of the scooters.At plant I ,85 out of 100 scooters are rated as being of standard quality,while at Plant II only 65 out of 100 scooters are rated as being of standard quality.If a scooter is of standard quality,what is the probability that it came from Plant I?

asked Apr 17, 2013 by sreemathi.v

1 answer

An insurance company insured 1500 scooter drivers,2500 car drivers and 4500 truck drivers.The probability of a scooter ,a car and a truck meeting with an accident is 0.01,0.02 and 0.04 respectively.If one of the insured persons meets with an accident,find the probability that he is a scooter driver.

asked Apr 16, 2013 by sreemathi.v

1 answer

A class consists of 50 students out of which there are 10 girls.In the class 2 girls and 5 boys are rank holders in an examination.If a student is selected at random from the class and is found to be a rank holder,what is the probability that the student selected is a girl?

asked Apr 15, 2013 by sreemathi.v

1 answer

Consider the following data :

asked Apr 12, 2013 by sreemathi.v

0 answers

The profit of a soft drink firm (in thousands of rupees) during each month of the year is as given below :

asked Apr 11, 2013 by sreemathi.v

0 answers

Calculate the 5 yearly moving averages of the number of students in a college from the following data and plot them on a graph paper :

asked Apr 11, 2013 by sreemathi.v

0 answers

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