Suppose, the walking speed of an elderly is no more than 6 km per hour. The walking speed, Y, in km per hour can be shown to have the following PDF 0

Algebra & Trigonometry with Analytic Geometry
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ISBN:9781133382119
Author:Swokowski
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Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
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5:05
493% i
Suppose, the walking speed of an elderly is no more than 6 km per hour. The walking speed, Y, in km per hour can be shown to have the following PDF
0 <y<4
18
f (Y = y)
y- 4<y<6
otherwise
a. What is the probability that the walking speed of some elderly person is at most 5 km per hour?
Answer in exact fraction or rounded to at least 4 decimal places
b. What is the probability that the walking speed of an elderly person is less than 3 km per hour or more than 4 km per hour?
Answer in exact fraction or rounded to at least 4 decimal places
c. What is the expected walking speed of an elderly person?
Answer in exact fraction or rounded to at least 4 decimal places
Transcribed Image Text:5:05 493% i Suppose, the walking speed of an elderly is no more than 6 km per hour. The walking speed, Y, in km per hour can be shown to have the following PDF 0 <y<4 18 f (Y = y) y- 4<y<6 otherwise a. What is the probability that the walking speed of some elderly person is at most 5 km per hour? Answer in exact fraction or rounded to at least 4 decimal places b. What is the probability that the walking speed of an elderly person is less than 3 km per hour or more than 4 km per hour? Answer in exact fraction or rounded to at least 4 decimal places c. What is the expected walking speed of an elderly person? Answer in exact fraction or rounded to at least 4 decimal places
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