89. There were 400 students in B.Com. (Hons.) in a certain college. Theirresons n various terminal examinations are. given below :180 passed in first terminal140 passed in second terminal180 passed in third terminal60 passed in all terminals80 failed in all terminalslo 1edmun Islot orli-080)40 passed in the first and second terminals but failed in the third terminal, 70 failed in the firstand second terminals but passed in the third terminal.Find out how many students passed at least two examinations.1o yonsialanopalworto befetise sd

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Answered: 89. There were 400 students in B.Com.…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Are job applicants with easy to pronounce last names just as likely to get called for an interview than applicants with difficult to pronounce last names. 519 job applications were sent out with last names that are easy to pronounce and 793 identical job applications were sent out with names that were difficult to pronounce. 337 of the "applicants" with easy to pronounce names were called for an interview while 557 of the "applicants" with difficult to pronounce names were called for an interview. What can be concluded at the 0.05 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion t-test for the difference between two dependent population means z-test for the difference between two population proportions t-test for the difference between two independent population means The null and alternative hypotheses would be: H0:H0: Select an answer p1 μ1 Select an answer < > = ≠ Select an answer…
Chandra Bahadur Dangi (1939-2015), who stood at 21.5 inches was the shortest (adult) person inhuman history for whom there is irrefutable evidence. Three of his five brothers were less thanfour feet tall, while his two sisters and two other brothers were of normal height. Before beingrecognized by the Guinness Book of World Records, he had never left his village in Nepal, andafter awarded the title of world’s shortest, he expressed his wish to travel the world.Robert Pershing Wadlow (1918-1940) was the tallest person in history for whom there isirrefutable evidence. Born a healthy 8 pound 6 ounces, in Alton Illinois, he grew at a rapid paceand at the age of eight he was a whopping 6 feet and 2 inches and 195 pounds. His extraordinaryheight was attributed to an overactive pituitary gland, which produced an excess of the growthhormone. Wadlow reached a towering 8 feet and 11 inches and weighed 485 lbs. at his death ofthe age of 22 from infection caused by a faulty brace irritating his…
7. How many ways are there that in a class of 60 students, 2 students will not have the same birth date?
My institutional account is requiring me to include six exact characters for my password, two of which will be numbers, one will be an upper case letter, and the other two can be any letter (upper/lower case) or digit. How many different passwords can I create so that no any character in my password is repeated?
In how many ways can 7 black and 7 white balls be distributed into 7 boxes so that there are exactly 2 balls in each box?
A club has members consisting 15 democrats and 10 republicnas. How many committess 4 people can be made assuming that the party affilicate is not important?
Suppose 7 female and 6 male applicants have been successfully screened for 5 positions. In how many ways can 5 people regardless of gender compositions be selected?
By the Pigeonhole Principle Show that if there are 60 students in a class, then at least two have last names that begin with the same letter.
If Umar got marks in 6 subjects out of 100 in 2nd semester. Which Central measures will apply by Umar and why? justify it with suitable example.
A complete enumeration of all items in the ‘population’ is known as
2. (a) A sack contains 50 marbles of 4 different colors. Explain why there are at least 13 marbles of the same color. (b) If exactly 8 of the marbles are red, explain why there are at least 14 of the same color.
What is the maximum number of unique license plate numbers which can be made by combining any three capital letters from the 26 letters in English alphabet, followed by any three numbers from 0-9? Suppose that repeating of letters and numbers is NOT allowed. One example of such a plate number is ABC123.

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