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ns. (i) 2/5 (ii) 15 A bag contains 7 w random, find the pr and other is red.

ns. (i) 2/5 (ii) 15 A bag contains 7 w random, find the pr and other is red.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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326 Basic Statistics Part-1 Q.14 A bag contains 4 white and 2 black balls. Two balls are selected at random without replacement. Find the following probabilities after making the sample space of all possible outcomes. (i) both are white (ii) both have the same colour (iii) both have different colours. Ans. (i) 2/5 (ii) 7/15 (iii) 8/15 Q.15 A bag contains 7 white, 5 black and 4 red balls If two balls are drawn at random, find the probability that (i) both the balls are white (ii) one is black and other is red. Ans. (i) 7/40 (ii) 1/6 Q.16 A committee of 4 people is to be appointed from 3 officers of the production department, 4 officers of the purchase department, 2 officers of the sales department and 1 chartered accountant. Find the probability of forming the committee in the following manner: There must be one from each category. (i) It should have at least one from the purchase department. (ii) (iii) The chartered accountant must be in the committee. Ans. (i) 24/210 Q.17 An urn contains 8 red, 3 white and 2 blue balls. If 3 balls are drawn at random, determine the probability that (i) all 3 are red (ii) all 3 are white (iii) 2 are rec and 1 is blue (iv) at least one is white (v) the balls are drawn in the order, red white and blue. (ii) 13/14 (iii) 2/5 (iii) 28/143 Q.18 Six cards are drawn at random from a deck of 52 cards. What is the probabili Ans. (i) 28/143 (ii) 1/286 (iv) 83/143 (v) 4/143 that 3 are red and 3 are black? Ans. 0.332 Q.19 If the probability of a horse A winning a race is 1/5 and that of a horse E 1/6, what is the probability that one of them wins? Ans. 11/30 Q.20 A coin and a die are thrown together. Find the chance of throwing a bead er or a tail and6. Ans. 1/6 Ans. 1/4 d". Are A and B.
Transcribed Image Text:326 Basic Statistics Part-1 Q.14 A bag contains 4 white and 2 black balls. Two balls are selected at random without replacement. Find the following probabilities after making the sample space of all possible outcomes. (i) both are white (ii) both have the same colour (iii) both have different colours. Ans. (i) 2/5 (ii) 7/15 (iii) 8/15 Q.15 A bag contains 7 white, 5 black and 4 red balls If two balls are drawn at random, find the probability that (i) both the balls are white (ii) one is black and other is red. Ans. (i) 7/40 (ii) 1/6 Q.16 A committee of 4 people is to be appointed from 3 officers of the production department, 4 officers of the purchase department, 2 officers of the sales department and 1 chartered accountant. Find the probability of forming the committee in the following manner: There must be one from each category. (i) It should have at least one from the purchase department. (ii) (iii) The chartered accountant must be in the committee. Ans. (i) 24/210 Q.17 An urn contains 8 red, 3 white and 2 blue balls. If 3 balls are drawn at random, determine the probability that (i) all 3 are red (ii) all 3 are white (iii) 2 are rec and 1 is blue (iv) at least one is white (v) the balls are drawn in the order, red white and blue. (ii) 13/14 (iii) 2/5 (iii) 28/143 Q.18 Six cards are drawn at random from a deck of 52 cards. What is the probabili Ans. (i) 28/143 (ii) 1/286 (iv) 83/143 (v) 4/143 that 3 are red and 3 are black? Ans. 0.332 Q.19 If the probability of a horse A winning a race is 1/5 and that of a horse E 1/6, what is the probability that one of them wins? Ans. 11/30 Q.20 A coin and a die are thrown together. Find the chance of throwing a bead er or a tail and6. Ans. 1/6 Ans. 1/4 d". Are A and B.
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