For each situation, state if a binomial distribution is reasonable for the random variable X. Justify your
Question:
(a) A multiple-choice examination consists of 10 problems, each of which has 5 suggested answers. A student marks answers by pure guesses (i.e., one answer is chosen at random out of the 5), and X denotes the number of marked answers that are wrong.
(b) A multiple-choice examination has two parts: Part 1 has 8 problems, each with 5 suggested answers, and Part 2 has 10 problems, each with 4 suggested answers. A student marks answers by pure guesses, and X denotes the total number of problems that the student correctly answers.
(c) Twenty-five married couples are interviewed about exercise, and X denotes the number of persons (out of the 50 people interviewed) who exercise regularly.
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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a X number of wrong answers out of 10 problems Identify S marking a wrong answer the event ...View the full answer
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Related Book For 
Statistics Principles And Methods
ISBN: 9780470904114
7th Edition
Authors: Richard A. Johnson, Gouri K. Bhattacharyya
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