Probability and Statistics – Page 3

n-married-couples-are-invited-to-a-dance-party-for-the-first-dance-n-paires-are-radomly-selected-what-s-the-probability-that-no-woman-dances-with-her-own-husband-1-if-a-pair-must-be-of-different-

Tinku Tara May 26, 2024 Probability and Statistics 0 Comments

Question Number 207787 by mr W last updated on 26/May/24 $n m a r r i e d c o u p l e s a r e i n v i t e d t o$ $a d a n c e p a r t y . f o r t h e f i r s t d a n c e$ $n p a i r e s a r e r a d o m l y s e l e c t e d .$ ${w h a t}^{'} s t h e p r o b a b i l i t y t h a t n o w o m a n$ $d a n c e s w i t h h e r o w n h u s b a n d ?$ $1) i f a p a i r m u s t b e o f d i f f e r e n t$ $g e n d e r s .$ $$\left.\mathrm{2}\right)\:{if}\:{a}\:{pair}\:{can}\:{also}\:{be}\:{of}\:{the}\:{same}\:…

Two-ships-have-the-same-berth-in-a-port-It-is-known-that-the-arrival-times-of-the-two-ships-are-independent-and-have-the-same-probability-of-docking-on-a-Sunday-00-00-24-00-If-the-berth-

Tinku Tara May 25, 2024 Probability and Statistics 0 Comments

Question Number 207752 by efronzo1 last updated on 25/May/24 $Two ships have the same berth$ $in a port . It is known that the$ $arrival times of the two ships$ $are independent and have the$ $same probability of docking$ $on a Sunday (00.00 - 24.00)$ $If the berth time of the first ship$ $$\:\mathrm{is}\:\mathrm{2}\:\mathrm{hours}\:\mathrm{and}\:\mathrm{the}\:\mathrm{berth}\:\mathrm{time} \…

It-is-known-that-a-balanced-6-sided-dice-originally-had-2-3-4-5-6-and-7-The-dice-wre-thrown-once-and-the-result-was-observed-If-an-odd-numbers-appears-than-the-number-is-replaced-with-the

Tinku Tara May 25, 2024 Probability and Statistics 0 Comments

Question Number 207751 by efronzo1 last updated on 25/May/24 $It is known that a balanced 6 - sided$ $dice originally had 2, 3, 4, 5, 6 and 7 .$ $The dice wre thrown once and$ $the result was observed . If an$ $odd numbers appears, than the$ $number is replaced with the$ $number 8 . However, if an even$ $$\:\mathrm{number}\:\mathrm{appears}\:,\:\mathrm{the}\:\mathrm{number} \…

1-1-20-0-1-2-20-1-1-3-20-2-1-21-20-20-

Tinku Tara May 22, 2024 Probability and Statistics 0 Comments

Question Number 207665 by efronzo1 last updated on 22/May/24 $\frac{1}{1} (\begin{matrix} 20 \\ 0 \end{matrix}) + \frac{1}{2} (\begin{matrix} 20 \\ 1 \end{matrix}) + \frac{1}{3} (\begin{matrix} 20 \\ 2 \end{matrix}) + \dots + \frac{1}{21} (\begin{matrix} 20 \\ 20 \end{matrix}) = ?$ Answered by Tinku Tara last updated on 22/May/24 $$\left(\mathrm{1}+{x}\right)^{\mathrm{20}} =\underset{{n}=\mathrm{0}} {\overset{\mathrm{20}} {\sum}} $(\begin{matrix} 20 \\ n \end{matrix})$ {x}^{{n}} \…

Let-cardE-n-and-the-set-of-parts-S-A-B-P-E-P-E-A-B-Show-that-cardS-3-n-

Tinku Tara May 13, 2024 Probability and Statistics 0 Comments

Question Number 207387 by sniper237 last updated on 13/May/24 $L e t c a r d E = n, a n d t h e s e t o f p a r t s$ $S = {(A, B) \in P (E) \times P (E) / A \cap B = \emptyset}$ $S h o w t h a t c a r d S = 3^{n}$ Answered by Berbere last updated on 13/May/24 $${if}\:{card}\left({A}\right)={k};{E}={A}\cup\overset{−} {{A}}\:\:{the}\:{number}\:{of}\:{subset}\:{of}\:{card}={k}…

Show-that-k-0-n-C-n-k-2-C-2n-n-

Tinku Tara May 13, 2024 Probability and Statistics 0 Comments

Question Number 207374 by sniper237 last updated on 13/May/24 $S h o w t h a t \underset{k = 0}{\sum^{n}} {(C_{n}^{k})}^{2} = C_{2 n}^{n}$ Answered by mr W last updated on…

In-this-covid-19-pandemic-it-is-known-that-are-5-667-355-confirmed-cases-out-of-273-500-000-in-X-country-population-based-WHO-One-of-the-equipment-to-test-the-covid-19-is-GeNose-C19-S-deve

Tinku Tara April 17, 2024 Probability and Statistics 0 Comments

Question Number 206514 by cortano21 last updated on 17/Apr/24 $I n t h i s c o v i d - 19 p a n d e m i c, i t i s$ $k n o w n t h a t a r e 5, 667, 355 c o n f i r m e d$ $c a s e s o u t o f 273, 500, 000 i n X c o u n t r y$ $p o p u l a t i o n b a s e d W H O .$ $O n e o f t h e e q u i p m e n t t o t e s t t h e$ $c o v i d - 19 i s G e N o s e C 19 - S d e v e l o p e d$ $b y U G M . G e N o s e C 19 - S i s a r a p i d$ $$\:{screening}\:{equipment}\:{for}\:{Sars}−{CoV}\mathrm{2} \…

let-x-y-z-be-random-numbers-from-0-to-10-where-x-y-z-R-what-is-the-probability-that-a-all-the-following-is-satisfied-x-y-2-x-z-2-y-z-2-b-the-probability-that-one-or-two-of-them-are-not-sat

Tinku Tara March 20, 2024 Probability and Statistics 0 Comments

Question Number 205409 by Red1ight last updated on 20/Mar/24 $let x, y, z be random numbers from 0 to 10$ $where x, y, z \in R$ $what is the probability that$ $a) all the following is satisfied$ $∣ x - y ∣⩾ 2$ $∣ x - z ∣⩾ 2$ $∣ y - z ∣⩾ 2$ $$\left.{b}\right)\:\:\mathrm{the}\:\mathrm{probability}\:\mathrm{that} \…

let-x-and-y-be-random-numbers-from-0-to-10-where-x-y-R-x-y-d-what-is-the-probability-that-their-sum-is-less-than-10-in-the-following-cases-a-d-0-b-d-1-c-d-2-

Tinku Tara March 19, 2024 Probability and Statistics 0 Comments

Question Number 205394 by Red1ight last updated on 19/Mar/24 $let x and y be random numbers from 0 to 10$ $where x, y \in R$ $∣ x - y ∣⩾ d$ $what is the probability that their sum is less than 10$ $in the following cases$ $a) d = 0$ $b) d = 1$ $$\left.{c}\right)\:{d}=\mathrm{2} \…

Question-205230

Tinku Tara March 13, 2024 Probability and Statistics 0 Comments

Question Number 205230 by louisyanni last updated on 13/Mar/24 Commented by Rasheed.Sindhi last updated on 13/Mar/24 $R e s e r v e d s p a c e f o r a q u e s t i o n ?$ Commented by Frix…

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