A)​Yes, the table shows a probability distribution. B)​No, the random variable x is categorical instead of numerical. C)​No, the sum of all the probabilities is not equal to 1. D)No, not every probability is between 0 and 1 inclusive. E)No, the random variable​ x's number values are not associated with probabilities. Find the mean of the random variable x. Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice. __ mean for adults __ standard deviation for adults

Q: Defects occur at random in planks of wood with an average of 0.5 per 10 cm length. Office building…

A:

Q: The probability of student success in statistics is 0.4, and the probability of success in math is…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 57​% use them in meetings or…

A: Binomial Distribution :  The binomial probability is a type of discrete probability distribution…

Q: obi has recently hired a batch of new employees. Of the new recruits, 77% were able to meet…

A: Given: Let E denote met expectations C denote knew coding P (E) = 0.77 P (E') = 1 - P(E)          =…

Q: Construct a probability distribution for tossing 3 coins. Assume X be the number of tails.

A: here number of trials( number of times the coin is tossed)=3 in tossing a coin for once , the…

Q: A class has 18 boys and 12 girls. The teacher calls on students at random to recite. What is the…

A: Given that  Total students=18+12=30 Boys students=18 Girls students=12 Teacher calls on students at…

Q: Assume that when adults with smartphones are randomly selected, 45% use them in meetings or classes.…

A: Given that n =15 , P =0.45 Using binomial distribution Find P ( x <3 ) =?

Q: 2. From a box containing 4 dimes and 2 nickels, 3 coins are selected at random without replacement.…

A: To find the probability distribution for the total T of the 3 coins, we need to consider all…

Q: Assume that when adults with smartphones are randomly​ selected, 37​% use them in meetings or…

A: We have given that,  Probability (p) = 37% = 0.37 . n = 9 . And x=2 .

Q: In a class with 7 boys and 9 girls, Three students are selected at random. The probability…

A:

Q: 6. Data show that 20% of all patients who make appointments at a primary-care clinic never show If…

A: Please help with number 6 a, b, e   Proportion of patients who make appointments and never show up =…

Q: The probabilities of a return on an investment of $5000, $7000, and $9000 are 1 2 , 3 8 and 1 8…

A: Given Information: The probabilities of a return on an investment of $5000, $7000, and $9000 are…

Q: Assume that when adults with smartphones are randomly​ selected, 42​% use them in meetings or…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 44​% use them in meetings or…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment.…

Q: Obtain the probability distribution of X that shows the number of heads in a three tosses of a coin.

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Q: Assume that when adults with smartphones are randomly​ selected, 61​%use them in meetings or…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 45​% use them in meetings or…

A:

Q: Consider the case when the predetermined average number of bus arrivals at the Cubao station is 6…

A: Solution: Let X be the number of buses arriving a 15 minute period. From the given information,…

Q: Suppose a coin is tossed. Let X be the random variable representing the number of heads. Find the…

A: Given: A coin is tossed. X is the random variable representing the number of heads. Possible…

Q: Assume that when adults with smartphones are randomly​ selected, 51​% use them in meetings or…

A: Let X be the adults with smartphone X~B(n=10, p=0.51) P(X>=5)= ?

Q: The number of trees planted at FRIM is not more than 45 trees a day. The probability that there are…

A: From the information, given thatLet X denotes the number of trees planted in a day

Q: The mean number of power outages in the city of Manila is 5 per year. Find the probability that in a…

A: Let X be the number of power outages in the city of Manila Mean λ=5

Q: Assume that when adults with smartphones are randomly​ selected, 62​% use them in meetings or…

A: Let p = probability of success, implies p = probability individual uses smartphone in meetings or…

Q: Assume that when adults with smartphones are randomly​ selected, 55​% use them in meetings or…

A: As each adult has two options "To use smartphones in meetings or classes" or "Not to use smartphones…

Q: Construct a probability distribution for a family of three children. Let X represent the number of…

A: Given that there are 3 children.  X=the number of girls So the possible values of X are 0, 1, 2, 3

Q: a car rental company has determined that probability a car will need a service work in any given…

A: The probability that more than 400 cars will require service = P[X>400] = 1

Q: Please answer letters a,b and c. Thank you! Trading volume on the New York Stock Exchange has been…

A: Given,mean(μ)=646standard deviation(σ)=100

Q: A box containing 8 yellow and 5 red marbles. If two marbles are to be drawn at random without…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

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Q: 8. A basketball player has a free throw percentage of 80%. He was fouled while attempting a…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 55​% use them in meetings or…

A: Given Information: 55% of adults use their smartphones in meetings or classes. i.e., p=0.55 If n=11…

Q: The probability that a person is smart or thirsty is 0.7. The probability that they are smart or not…

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Q: In a shooting arena there are 16 guns of type A and 3 guns type B. Probability of hitting a shot…

A: Let us denote H=the event of hitting There are total (16+3)=19 guns.So, P(A)=1619, P(B)=319Given…

Q: Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes.…

A: Given,n=6p=0.54q=1-p=1-0.54=0.46X=No.of adults use their smartphones in meetingsor…

Q: Assume that when adults with smartphones are randomly​ selected, 57​% use them in meetings or…

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Q: Assume that when adults with smartphones are randomly​ selected, 47​% use them in meetings or…

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Q: on has blood type A is 0.3.Two persons are selected at random. What is the probability that neither…

A: Consider: E: The event that selected person has Blood type A. We have P(E)=0.3 The probability of…

Q: Assume that when adults with smartphones are randomly​ selected, 56​% use them in meetings or…

A: Let "X" be the adults who use their smartphones in meetings or classes.

Q: The chart below summarizes data related to the grades of 26 students in a math course and whether…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.