Download App

Probability — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsProbability1 Mark
Question
$\text{If}\ \text{P}(\text{A})=0.8,\ \text{P}(\text{B})=0.5\ \text{and}\ \text{P}(\text{B}|\text{A})=0.4,\ \text{find}:$
$ \text{P}(\text{A}|\text{B})$
✓

Answer

$\text{P}\left(\text{A}|\text {B}\right)=\frac{\text{P}\left(\text{A}\cap\text{B}\right)}{\text{P}\left(\text{B}\right)}=\frac{0.32}{0.50}=\frac{32}{50}=0.64$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Probability→Probability — all question types→Maths STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Differentiate the sin (log x), x > 0 w.r.t. x.
→
Let * be the binary operation on N given by a * b = L.C.M. of a and b. Find:Which elements of N are invertible for the operation *?
→
Evaluate the following:
$\sin^{-1}\Big(\sin\frac{5\pi}{6}\Big)$
→
Evaluate the following:
$\cos^{-1}(\cos12)$
→
Prove that the function $f(x) = {x^n}$ is continuous at x = n where n is a positive integer.
→
Integrate the function $x \cos^{-1} x$
→
If $R_1$ and $R_2$ are equivalence relations in a set A, show that $R_1$ $\cap$ $R_2$ is also an equivalence relation.
→
The probability distribution of random variable X is given below:
$\text{X}$
$0$
$1$
$2$
$3$
$\text{P}(\text{X})$
$\text{k}$
$\frac{\text{k}}{2}$
$\frac{\text{k}}{4}$
$\frac{\text{k}}{8}$
Find $\text{P}(\text{X}\leq2)+\text{P}(\text{X}>2)$
→
If A and B are two independent events, then the probability of occurrence of at least one of A and B is given by 1- P(A')(P(B').
→
If a line has direction ratios 2, –1, –2, then what are its direction cosines?
→