The probability distribution of a random variable is: A) the degree to which the variable’s possible values are spread out. B) the possible values of the random variable and the frequency with which the variable takes each value. C) the possible values of the random variable.

Q: A frequency distribution for the class level of students in an introductory statistics course is…

A: According to the given information,Number of Freshman, n(Freshman) = 6Number of Sophomore,…

Q: The number of customers that enter a store during one day is an example of O either a continuous or…

A: Answer  discrete random variable has a countable number of possible values. random variable can take…

Q: The Probability Distribution describes Select one: a. Most of the values that can be obtained by the…

A: According to the given information, we haveThe probability distribution is given.

Q: The local coffee shop keeps track of how much coffee they sell versus the temperature on that day,…

A: Regression equation is used to predict the variable based on the another variable. It explain the…

Q: A frequency distribution for the class level of students in an introductory statistics course is…

A: According to the given information,Number of Freshman, n(Freshman) = 7Number of Sophomore,…

Q: [Q3] A sample of 200 people are classified as below. If a person is picked at random from this oup,…

A: Given that    Male Female  Elementary  38 45 Secondary  68 50 College  22 27

Q: Giving a test to a group of students, the grades and gender are summarized below                 A…

A:

Q: The distribution of blood types for a certain population is 35% type A , 10% type B, 50% type O and…

A: We want to find probability by using multinomial.

Q: A grocery store employs cashiers, stock clerks, and deli/bakery workers. The distribution of…

A:

Q: In a class, 50% of the students play basketball, 20% of the students play football and 10% of the…

A:

Q: We have a red and a blue fair 4 sided die. Our random experiment is tosses of both dies…

A: Given: Red and Blue fair 4 sided die

Q: Directions: If the amount of milk in a gallon container is a μ normal random variable, with 128.2…

A: If the amount of milk in a gallon container is a random variable with 128.2 ounces and 0.2 ounce, We…

Q: iew and use the data attactched in the photo to answer the questions below. (A) Find the…

A: Solution: The probability distribution of random variable X is  x 0 1 2 3 Total  P(x) 0.03 0.14…

Q: J&T express delivers packages to customers of online shop. The probability of delivering a package…

A:

Q: The data in the table represent the number of consumer complaints against major U.S. airlines. If…

A: total complaints =285+252+294=831

Q: Example. There are four cards with a number I on them, five cards with a number 2, and one card with…

A: The mean is, E(x)=Σx*p(x)     =1*410+2*510+3*110    =1710    =1.7

Q: The  following  figure  shows  some  random  variables  you  have  encountered  in  everyday  life.…

A: In statistics, various types of variables are studied. There are two types of variables that are…

Q: The table gives the results of a survey of 1000 people about reducing industries' carbon emissions.…

A: Given, Favorable Outcomes (Democrat) = 310 Total No Of People in Group = 1000

Q: 5. Example. Consider the toss of three fair coins: • The sample space is • Define a few possible…

A: The sample space of tossing 3 fair coins is, S={HHH, HHT, HTH, THH, HTT, THT, TTH, TTT} n(s)=8

Q: Country of origin United States Russia Canada Austria Total Gold 12 21 9 A Silver 20 22 13 4 B…

A: Solution: 1. The given table of data is

Q: The data represent the results for a test for a certain disease. Assume one individual from the…

A: The data represent the results for a test for a certain disease.   Yes No Total Positive 137 18…

Q: Word Scramble : Costs 10 points. Total 4 letters which are L U C K . Depending on how many letters…

A:

Q: The results of an election poll are given in the figure below.   Candidate A Candidate B Other/No…

A: Given: The data for pol lection is given below   Candidate A Candidate B Other / No answer Male…

Q: Click the icon to view the table. a survey participant is selected at random, what is the…

A: Given A university conducted a survey of 380 undergraduate students regarding satisfaction with…

Q: The proportions of families with various numbers of children age 18 or under in a small town are…

A:

Q: A grocery store employs cashiers, stock clerks, and deli/bakery workers. The distribution of…

A: The given contingency table is Dependents Cashiers Stock Clerks Deli/Bakery Workers Total…

Q: Probabilities of different types of vehicle-to-vehicle accidents are shown below: Accident…

A: Given, Accident Probability Car to Car        0.01 Car to Truck        0.19 Truck to Truck…

Q: The table shows the results of a survey of patrons of a particular restaurant chain. Meals Good…

A: The contingency table is given as follows: Meals Good Service Poor Service Total Lunch…

Q: Suppose you want to predict the percentage of successful field goals a professional basketball…

A: 1. The provided information is  x y xy x2 45 69 3105 2025 46 78 3588 2116 70 68 4760 4900…

Q: Three coins are tossed. Let Z be the random variable representing the number of heads that occur.

A: here given three coins are tossed  and z= number of head occur

Q: If a stock is selected at random, what is the probability it paid dividend?

A: It is given that Number of stocks paid dividend = 40 + 75 = 115 Total = 40+75+87+48 = 250

Q: Giving a test to a group of students, the grades and gender are summarized below Grades vs. Gender…

A:

Q: A. Free Throw Shot - A player is awarded free throws whenever the player is fouled in a shooting…

A: Given that he makes 60% of his free throws and he shots 5 free throws every day in practice.

Q: Determine whether the random variable described is discrete or continuous. The total value of a set…

A: The given random variable is the total value of a set of coins.

Q: Which of the following is an example of a discrete random variable? Group of answer choices The…

A: Discrete random variable : A discrete random variable has a countable number of possible values

Q: Determine the value/s of the random variable in each of the following situations: A box contains…

A: Introduction: It is required to find the possible values of the random variable, U.

Q: A local trade union consists of plumbers and electricians. Classified according to rank: Apprentice…

A: Given,   Apprentice Journeyman Master Total Plumbers 55 40 10 105 Electricians 25 40 10 75…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.