Answer Posted / dijit

A = event that it is actually a six.
B = event that the girl reports it is a six.
required is P[A|B] i.e. Probability that it is actually a six given that the girl reports so.
So, P[A|B] = {P[B|A].P(A)}/ P(B) .....(1)
P[B|A]= P{Girl reports a six| actually a six}
= P{Girl speaks the truth}
= 4/5
P(A)=P{ it is a six }= 1/6
P(B)=P{Girl reports a six}
=P{Girl reports a six, A}+P{Girl reports a six, it is not a six}
=P[B|A].P(A)+P[B|A'].P(A')
=(4/5).(1/6)+(1/5).(5/6)
= 3/10
Hence, from equation (1)
P[A|B]= {(4/5)(1/6)}/(3/10) = 4/9

where is the y intercept for y = sin x?

1168

---

In normal distribution, approximately what percentage of the cases, to the nearest whole number, falls within 4 standard deviations of the mean?

1009

---

In 1700 ad, this person showed that a series of 0s and 1s could be used to denote a number:

1225

---

can i get model papers for the interview for the post of scientist/engineer'SC' at isro

3084

---

Simplify (785^3-235^3)/(785^2+785*235+235^2)

1589

---

3x+4y=10 x cube+y cube=6 minimum value of 3x+11y=?

1014

---

The product of 6 factorial is how many times larger than the product of 5 factorial?

1287

---

if n is a natural numbers, the n(n+1)(N+5) is

1014

---

Assuming a year in a dogs life is equivalent to 7 years of a humans life, what is 1 hour of a dogs life approximately equivalent to in a humans life?

1076

---

The members a,b,12 forma geometric progression and the nos a,b,9 form an arithmetic progression. find the value of a+b

1144

---

Define absolute maximum of the function f(x,y) at (a,b) ?

1080

---

find 200/7*5.04=

1506

---

Why do you want to work for BPO company

2044

---

Give the range for the following six values 2, 7, 11, 19, 25, 33

1065

---

how do we get the volume of sand

2681

---