1. A multiple-choice test has 10 questions, each with 4 choices. If a student guesses randomly on each question, calculate the probability of getting exactly 5 correct answers. 2.Given a normally distributed variable with a mean of 90 and a standard deviation of 18, calculate the z-score for a data point of 105.

1. A multiple-choice test has 10 questions, each with 4 choices. If a student guesses randomly on each question, calculate the probability of getting exactly 5 correct answers. 2.Given a normally distributed variable with a mean of 90 and a standard deviation of 18, calculate the z-score for a data point of 105.

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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