The current in a certain circuit as measured by an ammeter is a continuous random variable X with the following density function. [0.025x + 0.4 f(x) = 0 3≤x≤5 otherwise (a) Graph the pdf. f(x) f(x) f(x) 1 2 O 3 4 5 3 O Verify that the total area under the density curve is indeed 1. 0.0 0.025x + 0.4 dx = = 2.3125 - (b) Calculate P(X ≤ 4). How does this probability compare to P(X < 4)? O P(X ≤ 4) = P(X < 4) O P(X ≤ 4) > P(X <4) O P(X ≤ 4) < P(X < 4) (c) Calculate P(3.5 ≤ x ≤ 4.5). Calculate P(4.5 < X). 0.6 0.5 0.4 0.3 0.2 0.1 X 0.6 0.5 0.4 0.3 0.2 0.1 1 2 4 0.6 0.5 0.4 0.3 0.2 0.1 O 1 2 3 4 5 X f(x) 0.6 0.5 0.4 0.3 0.2 0.1 O 1 2 3 4 5 X
The current in a certain circuit as measured by an ammeter is a continuous random variable X with the following density function. [0.025x + 0.4 f(x) = 0 3≤x≤5 otherwise (a) Graph the pdf. f(x) f(x) f(x) 1 2 O 3 4 5 3 O Verify that the total area under the density curve is indeed 1. 0.0 0.025x + 0.4 dx = = 2.3125 - (b) Calculate P(X ≤ 4). How does this probability compare to P(X < 4)? O P(X ≤ 4) = P(X < 4) O P(X ≤ 4) > P(X <4) O P(X ≤ 4) < P(X < 4) (c) Calculate P(3.5 ≤ x ≤ 4.5). Calculate P(4.5 < X). 0.6 0.5 0.4 0.3 0.2 0.1 X 0.6 0.5 0.4 0.3 0.2 0.1 1 2 4 0.6 0.5 0.4 0.3 0.2 0.1 O 1 2 3 4 5 X f(x) 0.6 0.5 0.4 0.3 0.2 0.1 O 1 2 3 4 5 X
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter1: Functions
Section1.2: Functions Given By Tables
Problem 11E: A Troublesome Snowball One winter afternoon, unbeknownst to his mom, a child bring a snowball into...
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