On a popular app, users rate hair salons 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 ofstars of the selected rating. Here is the probability distribution of X.Value x of X12345P(X=x)0.250.190.090.210.26For parts (a) and (b) below, find the probability that the randomly selected hair salon rating has the described number of stars.(a) More than 3: ||(b) At most 2:

From the given information, a) The probability that the randomly selected hair salon rating has the…

Answered: On a popular app, users rate hair…

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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There are 6 radar stations and the probability of a single radar station detecting an enemy plane is 0.35. Identify the type of histogram for the probability distribution. P(r) 0.50 0.40 0.30 0.20 0.10 0.075 0 0.244 1 e. skewed left 0.328 2 0236 3 O a. symmetric O b. skewed right O c. uniform or rectangular Od. none of these choices 0.095 4 0.020 0.002 5 6 Number of radar stations r
On a popular app, users rate hair salons 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. ck fn Value x of X esc sign. Check P(X=x) 0.25 0.19 0.09 0.21 0.26 For parts (a) and (b) below, find the probability that the randomly selected hair salon rating has the described number of stars. (a) 3 or more: (b) Fewer than 4:0 Ⓡ ntertained Type here to search. ! 7 ? Q A 1 H hp @ Z 2 3 2 W S # 3 x S alt 4 E D $ 4 5 C O B R % LI F 5 X V to 49 T G 6 5 & Y B 99+ 7 H a hp 4+ N 8 Save For Later © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use Bigh Center & 100 S 19 144 9 M 105 1 > 4 O 1 1 UDOL JKLE 5- tva P { alt + C ? = 7 insert Submit Assignment * } 1 Am QU ortsc E ← pause ▸ ctri 9 9:19 PM 2/21/2023 backspace USE YOUR SMARTPHONE FOR Reviews Videos Feature Specs Support SCA
For families with 5 children, let X be the number of children with Genetic Condition B. Can the following table be a probability distribution for the random variable X?
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Each unit of a product produced and sold earns a profit of $ 50 and un- $ 30. The probability distribution is given below : sold units result into a loss of Units Demanded : 1 2 3 0.3 Probability () Compute how many units should be sold to earn maximum profit, and (i) Calculate EPPI and EVPI. : 0.2 0.2 0.25
Bill has purchased the insurance policy from an insurance company to cover the value of his new RV in case if it gets totaled for the price of $1300 per year. Bill's RV worth $38000 and the probability of him totaling the RV during the length of the policy is estimated to be 0.1%. Let X be the insurance company's profit. Answer the following questions: 1. Create the probability distribution table for X: X outcome profit x ,$ P(X=x) RV is totaled RV is not totaled 2. Use the probability distribution table to find the following: E[X]=μX= dollars. (Round the answer to 1 decimal place.) SD[X]=σX= dollars. (Round the answer to 1 decimal place.)
A technician services mailing machines at companies in the Phoenix area. Depending on the type of malfunction, the service call can take 0.9,1.8,2.7,or 3.6 hours. The different types of malfunctions occur at the same frequency. a. Develop a probability distribution for the duration of a service call. Duration of Call x f(x) 0.9 1.8 2.7 3.6 Total b. What is the probability a service call will take 2.7 hours ? c. A service call has just come in, but the type of malfunction is unknown. It is 3:00 P.M. and service technicians usually get off at 5:00 P.M. What is the probability the service technician will have to work overtime to fix the machine today?
Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15 Is this model a probability distribution? A. Yes. B. No. C. Maybe.
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