A child psychologist is interested in the number of times, x, a newborn baby's crying wakes its mother after midnight. X f(x) 0 2 50 1 a 2 23 50 3 9 50 4 4 50 5 b

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
Problem 62E
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A child psychologist is interested in the number of times, x, a newborn baby's crying
wakes its mother after midnight.
X
f(x)
0
2
50
1
a
225
23
50
If P(X ≤ 1 or X = 5) = ¹ and P(X > 3) =
a=11/50 and b=1/50
a=1/50 and b=11/50
3
9
50
a=7/50 and b=1/10
then:
4
4
50
None of the other answers is correct.
5
b
Transcribed Image Text:A child psychologist is interested in the number of times, x, a newborn baby's crying wakes its mother after midnight. X f(x) 0 2 50 1 a 225 23 50 If P(X ≤ 1 or X = 5) = ¹ and P(X > 3) = a=11/50 and b=1/50 a=1/50 and b=11/50 3 9 50 a=7/50 and b=1/10 then: 4 4 50 None of the other answers is correct. 5 b
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