A random variable X has a probability distribution given below.0 1 2 3f(x) 0.1 0.3 0.4 0.1 ? 0.054 5a) Find P(X = 4).b) Find P(X < 2).c) Find u, o?and o.d) Find the probability that an observation will fall into the interval µ ± 20.

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A random variable X has a probability distribution given below. x 0 |f(x) | 0.1 | 0.3 | 0.4 0.1 ? 0.05 1 2 3 45 a) Find P(X = 4). b) Find P(X < 2). c) Find u, o?and o. d) Find the probability that an observation will fall into the interval µ± 20.

A random variable X has a probability distribution given below. x 0 |f(x) | 0.1 | 0.3 | 0.4 0.1 ? 0.05 1 2 3 45 a) Find P(X = 4). b) Find P(X < 2). c) Find u, o?and o. d) Find the probability that an observation will fall into the interval µ± 20.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 9E

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Question

A random variable X has a probability distribution given below.
0 1 2 3
f(x) 0.1 0.3 0.4 0.1 ? 0.05
4 5
a) Find P(X = 4).
b) Find P(X < 2).
c) Find u, o?and o.
d) Find the probability that an observation will fall into the interval µ ± 20.

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