Consider the two situations below. Please answer them both. Thanks 3. If two students will þe picked from a pool of students and W is a randomvariablethat pertains to the sum of the weights of the two students, identify ifW is a discrete or continuous random variable.4. Eliza is going to bake some cookies for the weekend. She checked what she hasin her kitchen and figured out that she needs more ingredients to bake hercookies. She then made a list,so she can buy what she still needs. On her list, anumber of eggs, sugar, flour, and baking soda are included. Identify therandom variables in the givensituation, and classify each.

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Answered: two students will be picked from a pool…

two students will be picked from a pool of students and W is a random variablethat pertains to the sum of the weights of the two students, identify if W is a discrete or continuous random yariahle

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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An instructor gave students the option to purchase an interactive program that allows them to answer questions during class and receive credit for participating. Alternatively, students could work an extra problem during weekly homework assignments. The instructor randomly selected 10 students, then randomly divided them into two groups of five each. One group was provided the interactive tool, the other group was asked to work the extra problem. The instructor knew from prior experience that the interactive tool increases attendance. The table below contains the final exam scores for the 10 students (on a scale from 0 to 100). Interactive: 65 78 84 88 96 Extra problem: 56 61 70 75 82 The instructor wishes to test whether increased attendance throughout the semester leads to improved exam scores. Let µ I = mean score that would be observed if all students used the interactive tool and µ E = mean score if all students worked an extra problem. The degrees of freedom, using a t table…
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