On a popular app, users rate restaurants as 1. 2. 3. 4, or 5 stars. Suppose a rating is randomly se ected 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 Value x of X P(X=x) For parts (a) and (b) below. Find the probability that the randomly selected restaurant rating has the described number of stars. (a) 3 or more: (b) Fewer than 4: 0.21 0.20 0.11 0.24 0.24
On a popular app, users rate restaurants as 1. 2. 3. 4, or 5 stars. Suppose a rating is randomly se ected 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 Value x of X P(X=x) For parts (a) and (b) below. Find the probability that the randomly selected restaurant rating has the described number of stars. (a) 3 or more: (b) Fewer than 4: 0.21 0.20 0.11 0.24 0.24
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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![On a popular app, users rate restaurants as 1, 2,
stars of the selected rating. Here is the probability distribution of XX.
Value x of X
2
ly selected from all the ratings on the app. Let X be the number of
WER
P(X=x) 0.21 0.20 0.11 0.24 0.24
For parts (a) and (b) below, find the probability that the randomly selected restaurant rating has the described number of stars.
(a) 3 or more:
(b) Fewer than 4:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F18084dd8-0cd2-4e08-bd77-001f2ce4ed48%2Fe48390de-d5fb-46cf-9348-bfeca03b975b%2Fg1luwba_processed.jpeg&w=3840&q=75)
Transcribed Image Text:On a popular app, users rate restaurants as 1, 2,
stars of the selected rating. Here is the probability distribution of XX.
Value x of X
2
ly selected from all the ratings on the app. Let X be the number of
WER
P(X=x) 0.21 0.20 0.11 0.24 0.24
For parts (a) and (b) below, find the probability that the randomly selected restaurant rating has the described number of stars.
(a) 3 or more:
(b) Fewer than 4:
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