Question and Answers Forum

Probability and StatisticsQuestion and Answers: Page 5

Question Number 180151 Answers: 1 Comments: 0

1)twenty men are invited for a dinner and are to be seated around a circular table.how many diffrent arrangment are possible? 2)with ten men and ten women. how many diffrent arrangment are possible that alternate men and women?

$1) t w e n t y m e n a r e i n v i t e d f o r a d i n n e r a n d a r e t o$ $b e s e a t e d a r o u n d a c i r c u l a r t a b l e . h o w$ $m a n y d i f f r e n t a r r a n g m e n t a r e p o s s i b l e ?$ $2) w i t h t e n m e n a n d t e n w o m e n . h o w m a n y$ $d i f f r e n t a r r a n g m e n t a r e p o s s i b l e t h a t$ $a l t e r n a t e m e n a n d w o m e n ?$

Question Number 179906 Answers: 2 Comments: 0

2 boxes, 1st contains 4 white & 6 black balls 2nd box contains 8 white & 8 black balls We randomly draw a ball, got a black one What′s probability that it was drawn from Box_2 ?

$2 b o x e s, 1 s t c o n t a i n s 4 w h i t e & 6 b l a c k b a l l s$ $2 n d b o x c o n t a i n s 8 w h i t e & 8 b l a c k b a l l s$ $W e r a n d o m l y d r a w a b a l l, g o t a b l a c k o n e$ ${W h a t}^{'} s p r o b a b i l i t y t h a t i t w a s d r a w n f r o m {B o x}_{2} ?$

Question Number 179545 Answers: 0 Comments: 3

Find the probability that n people (n≤365) selected at random will have n different birthdays.

$Find the probability that n people$ $(n ⩽ 365) selected at random will$ $have n different birthdays .$

Question Number 179542 Answers: 1 Comments: 0

A and B play a game in which they alternately toss a pair of dice. The one who is first to get a total of 7 wins the game . Find probability that the one who tosses second will win the game

$A and B play a game in which they$ $alternately toss a pair of dice . The$ $one who is first to get a total of 7 wins$ $the game . Find probability that the one$ $who tosses second will win the game$

Question Number 178628 Answers: 0 Comments: 7

Question Number 178626 Answers: 1 Comments: 3

Question Number 177814 Answers: 1 Comments: 3

The probability that you give the right answer to this question is... A) 0% B) 25% C) 50% D)100%

$T h e p r o b a b i l i t y t h a t y o u g i v e t h e r i g h t$ $a n s w e r t o t h i s q u e s t i o n i s . . .$ $A) 0 % B) 25 % C) 50 % D) 100 %$

Question Number 178488 Answers: 1 Comments: 0

I have two children. One is a boy born on a Tuesday. What is the probbility I have two boys

$I have two children . One is a boy$ $born on a Tuesday . What is the$ $probbility I have two boys$

Question Number 176449 Answers: 0 Comments: 0

A fair dice was thrown twice and it landed on a and b respectively then the probability that cubic equation x^3 −(3a+1)x^2 +(3a+2b)x−2b=0 has three distinct root

$A fair dice was thrown twice and$ $it landed on a and b respectively then$ $the probability that cubic equation$ $x^{3} - (3 a + 1) x^{2} + (3 a + 2 b) x - 2 b = 0$ $has three distinct root$

Question Number 176378 Answers: 0 Comments: 0

Question Number 176168 Answers: 1 Comments: 0

Two fair dice are rolled once. Let X be the random variable representing the sum of the numbers that show up on the two dice. Find X.

$Two fair dice are rolled once . Let X$ $be the random variable representing$ $the sum of the numbers that show$ $up on the two dice . Find X .$

Question Number 175032 Answers: 0 Comments: 0

Question Number 174785 Answers: 0 Comments: 0

Question Number 174681 Answers: 0 Comments: 0

In a game of lotto, balls are numbered 1 through to 90. They are placed in a barrel and five balls are drawn out without replacement. The balls are of the same size and are equally like to be drawn. The first five balls drawn out are 28 - 06 - 27 - 54 - 86. What is the probability that the next ball drawn out will be number 18?

Question Number 174534 Answers: 0 Comments: 0

Question Number 174459 Answers: 0 Comments: 0

Question Number 173842 Answers: 1 Comments: 0

The probability that an athlete will not win any of the three races is 1/4. If the athlete runs in all the races, what is the probability that the athlete will win: (I) only the second race: (ii) all the three races (iii) only two of the races?

Question Number 181424 Answers: 1 Comments: 1