Download App

Probability Distributions (p-2) — Maths (commerce) STD 12 Commerce / Arts — Question

Maharashtra BoardEnglish MediumSTD 12 Commerce / ArtsMaths (commerce)Probability Distributions (p-2)3 Marks
Question
Two numbers are selected at random (without replacement) from the first six positive integers. Let X denote the larger of the two numbers. Find E(X).
✓

Answer

Get the step-by-step solution for this question inside the Vidyadip app.

Get the answer in the app

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 "Solve the Following Question.(3 Marks)" from Probability Distributions (p-2)→Probability Distributions (p-2) — all question types→Maths (commerce) STD 12 Commerce / Arts question papers→Maharashtra Board STD 12 Commerce / Arts question papers→Maharashtra Board question paper generator→

Similar questions

From the data of 20 pairs of observation on X and Y, following result are obtained $\bar{x}=199$,
$
\begin{aligned}
& \bar{y}=94, \sum\left(x_i-\bar{x}\right)^2=1200, \sum\left(y_i-\bar{y}\right)^2=300 \\
& \sum\left(x_i-\bar{x}\right)\left(y_i-\bar{y}\right)=-250 \\
& \text { Find }
\end{aligned}
$
(i) The line of regression of $Y$ on $X$.
(ii) The line of regression of $X$ on $Y$.
(iii) Correlation coefficient between $\mathrm{X}$ on $\mathrm{Y}$.
→
If the feasible region is bounded by the inequations 2x + 3y ≤ 12, 2x + y ≤ 8, 0 ≤ x, 0 ≤ y, then point (5, 4) is a ______ of the feasible region
→
Evaluate $\int \frac{1}{x \log x} d x$
→
Anita is allowed $6.5 \%$ commission on the total sales made by her, plus, a bonus of $\frac{1}{2} \%$ on the sale over $\text{₹}20,000$. If her total commission amounts to $\text{₹} 3,400$. Find the sales made by her.
→
Find $\frac{d y}{d x}$ if, :
$
x=\sqrt{1+u^2}, y=\log \left(1+u^2\right)
$
→
Calculate the cost of living number for the following data.
GROUP BASE YEAR CURRENT YEAR
PRICE
$p_0$		 QUANTITY
$q_0$		 PRICE
$P_1$
FOOD $140$ $13$ $160$
CLOYHING $120$ $18$ $150$
FUEL & LIGHTING $140$ $10$ $190$
HOUSE RENT $160$ $12$ $210$
MISCELLANEOUS $180$ $15$ $260$
→
Solve the following problem :

Solve the following assignment problem to maximize sales:

Salesman Territories
I II III IV V
A 11 16 18 15 15
B 7 19 11 13 17
C 9 6 14 14 7
D 13 12 17 11 13
→
You are given the following information about advertising expenditure and sales.
Advertisement expenditure (Rs.in lakh)Sales (Rs.in lakh)
Arithmetic mean1090
Standard deviation312
Correlation coefficient between X and Y is 0.8
(i) Obtain two regression equations.
(ii) What is the likely sales when the advertising budget is ₹ 15 lakh?
(iii) What should be the advertising budget if the company wants to attain sales target of ₹ 120 lakh?
→
A printing company prints two types of magazines A and B. The company earns ₹ 10 and ₹ 15 on magazines A and B per copy. These are processed on three machines I, II, III. Magazine A requires 2 hours on the machine I, 5 hours on machine II, and 2 hours on machine III. Magazine B requires 3 hours on machine 1, 2 hours on machine II and 6 hours on machine III. Machines I, II, III are available for 36, 50, 60 hours per week respective. Formulate the linear programming problem to maximize the profit.
→
Evaluate $\int x^2 e ^{4 x} d x$
→