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An urn contains 5 white and 3 black balls.If two balls are drawn at random without replacement and X denotes the number of white balls drawn,then find its probability distribution

Posted by Sibani M 1 year, 4 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Preeti Dabral 1 year, 4 months ago

Step 1 of 2

Two cards are drawn simultaneously,

Let, denotes the number of aces in 2 draws from a pack of 52 cards

∴ X can takes values 0, 1, 2

Step 2

{tex}\begin{aligned} & P(X=0)=\frac{{ }^{48} C_2}{{ }^{52} C_2}=\frac{48 \times 47}{52 \times 51}=\frac{12 \times 47}{13 \times 51}=\frac{188}{221} \\ & \therefore P(X=0)=\frac{188}{221} \\ & P(X=1)=\frac{{ }^4 C_1 \times{ }^{48} C_1}{{ }^{52} C_2}=\frac{4 \times 48 \times 2}{52 \times 51}=\frac{32}{221} \\ & \therefore P(X=1)=\frac{32}{221} \\ & P(X=2)=\frac{{ }^4 C_2}{{ }^{52} C_2}=\frac{4 \times 3}{52 \times 51}=\frac{1}{221} \\ & \therefore P(X=2)=\frac{1}{221} \\ & \end{aligned}{/tex}

Thus the probability distribution of random variable is
{tex}\begin{array}{|l|l|l|l|} \hline X & 0 & 1 & 2 \\ \hline P(X) & \frac{188}{221}= & \frac{32}{221}= & \frac{1}{221}= \\ \hline \end{array}{/tex}

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How to find multiplicative inverse of modulo

Posted by Lakshme Narayanan Nanda Kumar 2 years, 10 months ago

CBSE > Class 12 > Applied Mathematics

0 answers

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A man has an expensive square shape piece of golden board of size 24 cm is to be made into a box without top by cutting from each corner and folding the flaps to form a box.

Posted by Nandani Rana 2 years, 10 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Sia ? 2 years, 10 months ago

1024cm³

2Thank You

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Sin'(sin1/2)

Posted by Vasu Singhal 2 years, 10 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Nitasha Goyal 2 years, 10 months ago

Wrong question

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Evaluate | 2b a |    , if it is given that ˆ ˆ ˆ a 2i j 3k     .

Posted by Devesh Kumar 2 years, 10 months ago

CBSE > Class 12 > Applied Mathematics

0 answers

ANSWER

Evaluate if |a vector*b vector|,if it is given that a vector=2icap-j cap+3kcap

Posted by Devesh Kumar 2 years, 10 months ago

CBSE > Class 12 > Applied Mathematics

0 answers

ANSWER

Is there ncert book for applied maths 12th

Posted by Sangeeta Malhotra 2 years, 11 months ago

CBSE > Class 12 > Applied Mathematics

3 answers

Samkit Jain 2 years, 6 months ago

Not yet published as hard copy,, but available in pdf form

0Thank You

Siddharth Tripathi 2 years, 9 months ago

pdf is now avialable online

1Thank You

Sahil Gupta 2 years, 9 months ago

Not yet published by cbse

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Ncert book for approval maths

Posted by Sangeeta Malhotra 2 years, 11 months ago

CBSE > Class 12 > Applied Mathematics

0 answers

ANSWER

Is there any good teacher for applied maths is there on YouTube or any app please

Posted by X Y 2 years, 11 months ago

CBSE > Class 12 > Applied Mathematics

2 answers

Sahil Gupta 2 years, 9 months ago

Ruby Rawat on unacademy

4Thank You

Arnob Phukon 2 years, 11 months ago

Search ..Applied mathematics Gaur Classes

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Is any reduction of chapters this year? Because there are 23 chapters acc. to R.D sharma ?

Posted by Harman Singh 3 years ago

CBSE > Class 12 > Applied Mathematics

2 answers

Tanushri Bhayani 1 year, 2 months ago

Yes partnership and index number

0Thank You

Sourav Khandelwal 2 years, 11 months ago

1Thank You

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Matrics chapter 3 ncert

Posted by Lakshay Lohan 3 years ago

CBSE > Class 12 > Applied Mathematics

0 answers

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Matrix chapter 1

Posted by Lakshay Lohan 3 years ago

CBSE > Class 12 > Applied Mathematics

0 answers

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110\11

Posted by Rohit Meena 3 years, 1 month ago

CBSE > Class 12 > Applied Mathematics

2 answers

Sher Singh 2 years, 9 months ago

1Thank You

Anamika Sharma 3 years, 1 month ago

8Thank You

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Ncrt solution

Posted by Kamya Varddhan Singh 3 years, 1 month ago

CBSE > Class 12 > Applied Mathematics

0 answers

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Name suitable textbook for cbse class12 ,Applied mathematics

Posted by V P Niharika 3 years, 2 months ago

CBSE > Class 12 > Applied Mathematics

5 answers

Arnob Phukon 2 years, 11 months ago

ML Agarwal

0Thank You

Kajal Kumari 2 years, 11 months ago

Rs Agarwal is also good according to me

1Thank You

Prachi Janwani 3 years, 1 month ago

Rd sharma is also good according to me

4Thank You

Harman Singh 3 years, 1 month ago

dont ever use ML agarwal, its the worst book and very complicated, i used it in class 11th

2Thank You

Piyush Singh 3 years, 1 month ago

Ml Agarwal

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Show that the function f given by f(x)= 3 -7 x is strictly decreasing

Posted by Rohini H2021 3 years, 2 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Rakamanickam Meerabai 3 years, 1 month ago

f'(x)=-7 <0 Therefore f(x) is strictly decreasing.

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+3 ke economic s book, guide chaya

Posted by Sridhar Maharana 3 years, 3 months ago

CBSE > Class 12 > Applied Mathematics

0 answers

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Prove that tan 60 degree + a tan 60 degree minus A is equal to 2 cos 2A + 1 divided by 2 + 2 Y - 1

Posted by Mitali Singh 1 year, 4 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Preeti Dabral 1 year, 4 months ago

LHS=RHS

Hence Proved

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Linear programming

Posted by Harman Sahota 1 year, 4 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Preeti Dabral 1 year, 4 months ago

Linear programming deals with the optimization (maximization or minimization) of a linear function of a number of variables subject to a number of conditions on the variables, in the form of linear inequations or equations in variables involved.

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3x² - 2x² = ?

Posted by Anusha Lingaraddi 3 years, 5 months ago

CBSE > Class 12 > Applied Mathematics

5 answers

Sumit Singh Bora 3 years, 3 months ago

x²

0Thank You

Vishal Kumar 3 years, 3 months ago

0Thank You

Hrithik Chauhan 3 years, 3 months ago

x^2

1Thank You

Tanay Bhushan 3 years, 4 months ago

X²

8Thank You

Tanmay Jain 3 years, 4 months ago

3Thank You

ANSWER

Integral-1to 2 |x³-x|dx

Posted by Kavya P 3 years, 5 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Golden K 3 years, 5 months ago

[(X^4) /4 - (X^2) /2] from 1 to 2 =9/4

2Thank You

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Evaluate L{sin at/t}

Posted by Mohit Mehra 3 years, 8 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Arjűņ _Pāwåř 3 years, 8 months ago

This is from laplace transform- L{sinat}=s2s2+a2[−e−st(1ssinat+as2cosat)]t=∞t=0L{sin⁡at}=s2s2+a2[−e−st(1ssin⁡at+as2cos⁡at)]t=0t=∞ L{sinat}=∫→+∞0e−stsinatdtL{sin⁡at}=∫0→+∞e−stsin⁡atdt I=∫→+∞0e−stsinat=12i∫→+∞0e−st(eiat−e−iat)dt=12i∫→+∞0(e−t(−ia+s)−e−t(ia+s)dtI=∫0→+∞e−stsin⁡at=12i∫0→+∞e−st(eiat−e−iat)dt=12i∫0→+∞(e−t(−ia+s)−e−t(ia+s)dt 2iI=∣∣∣e−t(−ia+s)(ia−s)∣∣∣∞0+∣∣∣e−t(ia+s)(ia+s)∣∣∣∞02iI=|e−t(−ia+s)(ia−s)|0∞+|e−t(ia+s)(ia+s)|0∞ 2iI=1(s−ia)−1(s+ia)2iI=1(s−ia)−1(s+ia) I=as2+a2 May be it will help you.. I did as i can... Thanks!

6Thank You

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When will you add this book ??

Posted by Arjun Namdev 3 years, 10 months ago

CBSE > Class 12 > Applied Mathematics

1 answers

Dj King 3 years, 8 months ago

Afternoon

5Thank You

ANSWER

Find the value of, tan (cos-1,8/17)

Posted by Revendra Patil 3 years, 11 months ago

CBSE > Class 12 > Applied Mathematics

3 answers

Rakamanickam Meerabai 3 years, 1 month ago

Let cos-1 8/17=y cos y = 8/17. sec y=17/8 tan y =√(sec^2 y--1) =√(289/64--1) = 15 /8 Therefore. y=tan-1(15/8) tan(tan-1(15/8) ) =15/8

0Thank You

Harsh M 3 years, 4 months ago

15/8

0Thank You

Tanmay Sharma 3 years, 9 months ago

15/8

9Thank You

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Equation of a circle is x^2+y^2-2x+4y=0. Find equation of one of its diameter.

Posted by Ayushi Patel 3 years, 11 months ago

CBSE > Class 12 > Applied Mathematics

5 answers

Lokendra Tomar 3 years, 5 months ago

Aap kha se ho

0Thank You

Ravindra Bijarniya 3 years, 5 months ago

Oo bhai kaha se laya hai

2Thank You

Satyam Mishra 3 years, 5 months ago

Wffnt qeeeey136677#^ vevvvvvw%,'%++!%_€£*^:@:#,$?*$^#)×₩×₹£÷€÷_$&;#;÷:"×€£》~■~{○{○[》~《○■○■▪︎<>《¤☆¡▪︎¿》¤♧¤◇•]~{\>|>|[~♤○》¤》¤

2Thank You

Yash Sharma 3 years, 5 months ago

??oo bhai kya hai ye

1Thank You

Dhruv Sarkar 3 years, 10 months ago

The equation can be written as (x-1)^2 + (y+2)^2 = 5. —(1). => center of the circle is at O(1,-2). Now solve for eq(1) and y=0 so that we get the point(s) of intersection of the circle with the x-axis.The points will be A(3,0) and B(-1,0). The equation of the line OA will then be (by using two point form), x-y-3=0, which is the equation of one of the diameters,

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Is this required to take applied mathematics

Posted by Ashutosh Kumar 3 years, 11 months ago

CBSE > Class 12 > Applied Mathematics