Question

1. The discrete random variable $X$ is the number of passengers waiting at a bus stop. The table below shows the probability distribution for $X$. What is the expected value $E(X)$ for this distribution? $X$ $P(X)$ 0 .20 1 .40 2 .30 3 .10 Total 1.00 A. 1.1 B. 1.3 C. 1.7 D. 1.9

Name: 1 the discrete random variable x is the number of passengers waiting at a bus stop the table below shows the probability distribution for x what is the expected value ex for this distributio 81317
Uploaded: 2022-05-20T04:14:05-08:00
Duration: 7 min 37 s
Channel: Aarti Kumari
Description: 1 the discrete random variable x is the number of passengers waiting at a bus stop the table below shows the probability distribution for x what is the expected value ex for this distributio 81317

          1. The discrete random variable $X$ is the number of passengers waiting at a bus stop. The table below shows the probability distribution for $X$. What is the expected value $E(X)$ for this distribution?
$X$
$P(X)$
0
.20
1
.40
2
.30
3
.10
Total
1.00
A. 1.1
B. 1.3
C. 1.7
D. 1.9

1 the discrete random variable x is the number of passengers waiting at a bus stop the table below shows the probability distribution for x what is the expected value ex for this distributio 81317

Added by Amy M.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Aarti Kumari

05/20/2022

Step 1

The expected value $E(X)$ of a discrete random variable $X$ is calculated by summing the product of each possible value of $X$ and its corresponding probability. The formula is: $E(X) = \sum [x \cdot P(X=x)]$ Show more…

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1. The discrete random variable $X$ is the number of passengers waiting at a bus stop. The table below shows the probability distribution for $X$. What is the expected value $E(X)$ for this distribution? $X$ $P(X)$ 0 .20 1 .40 2 .30 3 .10 Total 1.00 A. 1.1 B. 1.3 C. 1.7 D. 1.9