
Concept explainers
A. Classify whether the given experiment implies a discrete random variable or a continuous
random variable. Write D if discrete and C if continuous.
___________1. The temperature of a solution in the laboratory of San Sebastian School.
___________2. Collecting data about the heights of students in Grade 11 students.
___________3. Recording the distance travelled by the jeep.
___________4. Surveying about the number of cases due to Covid - 19 pandemic in Nueva
Ecija.
___________5. Number of promoted students at the end of school year.
___________6. Getting the distance travelled by a car.
___________7. Collecting data about the weights of students in a certain school
___________8. The temperature in Science City of Munoz at noon times.
___________9. Picking a multiple of 3 less than 100.
___________10.Tallying the number of PUI (Person Under Investigation) due to Covid-19 pandemic
B. An umbrella - check girl returns 2 umbrellas at random to 2 customers who had previously checked in, namely Andrea and Althea. If Andrea’s umbrella was black and Althea’s umbrella was Yellow:
1. List the elements of the
2. List all possible values of the random variable X, the number of correct matches

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- A collection of numbers is Normal with a Mean of 20 and a Standard Deviation of 5; that is N(20,5). Boris’s score is 23.7 and Bela’s score is 26.2. What is the probability that a score is greater than Boris and less than Bela? Your final answer should be correct to 3 places after the decimal point. ________arrow_forward1. Identify if the following scenarios describe a discrete or continuous random variable. Explain your choice. (a) X = The number of persons in an emergency room 181screte (b) W = The weights of delivery trucks at a supermarket. Lconinaas (c) H= The areas of houses being built in a new subdivision. 2. Faith is a 95% free throw shooter. At practice, each player shoots 20 free throws. L X the number of free throws Faith makes out of 20 shots. (a) Explain why X is a binomial random variable. (b) Calculate the mean of X. (c) Calculate the standard deviation of X. (d) Use the binomial probability formula to find P(X = 19). Interpret this value in context. (e) Her coach says that he will let the team out of practice early if Faith makes 18 or me free throws. What is the probability that practice ends early? Show your work. 2017 BFW Publishers Starnes/Tabor Statistics and Probability with Applications 3/earrow_forwardSolve normal distribution problem #11arrow_forward
- A First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSON

