**Q27.** What is the probability of selecting a grade A student for the first time either in 2nd or 3rd selection? {Hint: use Geometric distribution with *p* value as the answer for question 18} ### Understanding Probability with GradesWhen analyzing the grades of students, let's explore how we determine the probability of receiving a specific grade. Consider the following data:- **Grade Distribution:** - A = 11 students - B = 2 students - C = 2 students - D = 0 students - F = 1 student- **Scores Received:** - 105, 82, 94.5, 72.5, 92, 91, 52, 86, 100, 96, 98, 109, 96, 98, 95, 72**Example Probability Calculation:****Question:** What is the probability that a student received grade A?To find the probability of a student receiving grade A, you use the formula for probability:\[ P(A) = \frac{\text{Number of A's}}{\text{Total Number of Students}} \]Given:- Number of A's = 11- Total Number of Students = 11 + 2 + 2 + 0 + 1 = 16\[ P(A) = \frac{11}{16} \]Thus, the probability, P(A), that a student received grade A is **0.687** or 68.7%.This means there’s a 68.7% chance that a randomly selected student received an A grade based on this data set.

Given, A = 11 B = 2 C = 2 D = 0 F = 1 P(A) = 0.687 Let X = number of trials required to get first…

Answered: Q27. What is the probability of…

Q27. What is the probability of selecting a grade A student for the first time either in 2nd or 3rd selection? {Hint: use Geometric distribution with p value as the answer for question 18}

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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