n a popular app, users rate restaurants as 1, 2, 3, 4, or 5 stars. Suppose a rating is randomly selected from all the ratings on the app. Let X be the number of ars of the selected rating. Here is the probability distribution of X. Walue x of X 1 P(X=x) 2 3 4 5 0.22 0.19 0.11 0.25 0.23 r parts (a) and (b) below, find the probability that the randomly selected restaurant rating has the described number of stars. (a) More than 3:0 (b) At most 2: X
n a popular app, users rate restaurants as 1, 2, 3, 4, or 5 stars. Suppose a rating is randomly selected from all the ratings on the app. Let X be the number of ars of the selected rating. Here is the probability distribution of X. Walue x of X 1 P(X=x) 2 3 4 5 0.22 0.19 0.11 0.25 0.23 r parts (a) and (b) below, find the probability that the randomly selected restaurant rating has the described number of stars. (a) More than 3:0 (b) At most 2: X
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![In a popular app, users rate restaurants as 1, 2, 3, 4, or 5 stars. Suppose a rating is randomly selected from all the ratings on the app. Let \( X \) be the number of stars of the selected rating. Here is the probability distribution of \( X \).
\[
\begin{array}{c|ccccc}
\text{Value } x \text{ of } X & 1 & 2 & 3 & 4 & 5 \\
\hline
P(X = x) & 0.22 & 0.19 & 0.11 & 0.25 & 0.23 \\
\end{array}
\]
For parts (a) and (b) below, find the probability that the randomly selected restaurant rating has the described number of stars.
(a) More than 3: \(\square\)
(b) At most 2: \(\square\)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F39618134-6ceb-48ac-ab5a-e0c16873beed%2F92a90c25-0ed3-4056-aadd-05ae06d59710%2Fiu9s0zj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In a popular app, users rate restaurants as 1, 2, 3, 4, or 5 stars. Suppose a rating is randomly selected from all the ratings on the app. Let \( X \) be the number of stars of the selected rating. Here is the probability distribution of \( X \).
\[
\begin{array}{c|ccccc}
\text{Value } x \text{ of } X & 1 & 2 & 3 & 4 & 5 \\
\hline
P(X = x) & 0.22 & 0.19 & 0.11 & 0.25 & 0.23 \\
\end{array}
\]
For parts (a) and (b) below, find the probability that the randomly selected restaurant rating has the described number of stars.
(a) More than 3: \(\square\)
(b) At most 2: \(\square\)
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