The probability of being chosen in a simple random sample of size n from a population of size N is

Q: Find the probability for the experiment of drawing two marbles at random (without replacement) from…

A: Probability

Q: According to a census, the number of household size in a certain city was represented by a random…

A:

Q: A manufacturing company performs a quality-control analysis on the ceramic tile it produces. Suppose…

A: The number of ways in which 3 tiles can be selected from a set of 22 tiles,…

Q: What is the probability that a standard normal random variable Z lies between -2.42 and 1.76?

A:

Q: Which value for X will result in the greatest relative frequency give discrete random variable…

A: P.d.f of binomial distribution is given by, p(x)= nCx px qn-x , q=1-p X~B(4, 1/10)  p(x)= 4Cx…

Q: Marketers find that 87% of US teenagers use the Internet. Consider a random sample over 282 US…

A:

Q: The incidence of disease in a forest is such that 20% of the trees in the forest have the chance of…

A:

Q: What is the probability that a random sample size 7 out of 15 identified people will have an average…

A: Given that,  7 out of 15 identified people will have an average of 6 to 8 hours of sleep in a day

Q: 1. Find the probability distribution for the random samples of committees of size 4 chosen from 8…

A: Probability distribution is the mathematical function that gives the probabilities of occurrence of…

Q: Consider the probability distribution of a random variable x. Is the expected value of the…

A: Probability distribution is a mathematical function which gives the probabilities of the outcomes of…

Q: A manufacturing firm produces a product that has a ceramic coating. The coating is baked on to the​…

A: Given: Proportion of defective items (p)= 0.09 Number of products (n) = 25

Q: What is the probability of tossing at least two heads

A: Let p be the probability of tossing a head. Then p = 0.5 And  X counts the number of heads in four…

Q: When a committee of size 2 is chosen from 5 persons, determine the probability distribution of the…

A: The total number of people is 5. The size of the committee is 2. Let P1,P2,P3,P4,P5 denote the 5…

Q: The central limit theorem states that: the probability distribution function of the sum of many…

A: The central limit theorem states that the sampling distribution of sample means follows normal…

Q: A manufacturing company performs a quality-control analysis on the ceramic tile it produces. Suppose…

A:

Q: Find the probability for the experiment of drawing two marbles at random (without replacement) from…

A: Given Information Two marbles of different colour needs to be drawn without replacement. We have 4…

Q: Is a probability distribution defined if the only possible values of a random variable are 0, 1, 2,…

A:

Q: Suppose that the discrete random variable X counts the number of heads in four tosses of a balanced…

A: If acoin is tosses then the probability of getting a head isP(getting a…

Q: A recent survey showed that 17% of households spend more than $100 per week on groceries. Assume the…

A:

Q: Define the Mean and Variance of Sums of Random Variables?

A: The mean of a random variable X is a weighted average of the possible values that the random…

Q: Why is a systematic sample a probability-based random sample?     because the sample units are…

A: Systematic sampling:   Systematic sampling involves first considering a starting point for randomly…

Q: Find the probability that a lot of 100 items, of which five are defective, will be accepted in a…

A: Here, Total number of items in a lot, N = 100 Number of defective items, x = 5 Sample size, n = 50…

Q: The random variable given in the accompanying table is because

A: Here given for the Probability distribution of Number of girls.

Q: At a certain university, 4% of men are over 6 feet tall and 1% of women are over 6 feet tall. The…

A: Let the sequence Ai of mutually exclusive and exhaustive event in a sample space S such that…

Q: Suppose that 30% of all college freshmen gain weight. A sample of 20 selected randomly. What is the…

A: The random variable X is the college freshmen gain weight which follows binomial distribution with…

Q: According to a Survey, households in the city X spend an average of $24 per week on their leisure…

A:

Q: What is the probability distribution function of the number prime numbers when a number between 1…

A: Solution: Given data; Prime  number  from 1 to 25,inclusive,  randomly selected. To find:…

Q: If Z is a standard normal random variable, then what is the probability that Z> 1.5 or Z<…

A:

Q: Suppose a simple random sample of size n=75 is obtained from a population whose size is N=25,000 and…

A: Given : population proportion with a specified characteristic is ,  p=0.6 sample of size n=75 Let X…

Q: FInd the probability for the experiment of drawing two marbles (without replacement) from a bag…

A: Given that, Bag containing 3 green, 6 yellow, and 5 red marbles.

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: What is the probability of an event E in a uniform sample space S?

A: An event is E. An uniform sample space is S. n(E) is the number of outcomes in E. n(S) is the total…

Q: The number of accidents at a certain intersection is a Poisson random variable. The probability that…

A: we have given that  The probability that there are 2 accidents in any given week is 3 times as much…

Q: Sixty percent of all children in a school do not have cavities. The probability, rounded to four…

A:

Q: Consider an experiment of flipping a coin 4 times. Let X= {the number of heads in the sample space}.…

A:

Q: A laundry shop averages 5 customers per hour. Assume that the number of customers is a Poisson…

A:

Q: The probability that a hockeyteam scores a total of 1 goal in a game is 0.124; 2 goals, 0.297; 3…

A:

Q: Construct a probability distribution for tossing two coins. Let x represents the number of tails.

A: Given that two coins are tossed.

Q: Find the probability of getting someone who test positive, given that he or she had the disease…

A:

Q: What is the probability that a random sample of size 8 out of 15 identified people will have an…

A: To find the probability that a random sample of size 8 out of 15 identified people will have an…

Q: a.) What random variable computes the probability there are r misprints in the 600 page book? b.)…

A: A book publisher determines that the probability of at least on any given page is 0.005 in a book.…

Q: Illustrate the probability distribution if X is the random variable that represents the number of…

A:

Q: ample size 7 o

A: Given as, Random sample size 7 out of 15 people.

Q: A discrete random variable is a random variable if it can take on an infinite number of values.

A: discrete random variable: A discrete random variable has acountable number of possible values. The…

Q: 4. The election return showed that a certain candidate received 65% of the votes. Find the…

A: Given : p = 0.65 n = 200

Q: A manufacturing company performs a quality-control analysis on the ceramic tile it produces. Suppose…

A: Total tiles = 16 Defective tiles = 7 If 5 tiles are sampled at randomly then probability that…

Q: If the probability of a machine producing a defective part is 0.01, what is the probability of…

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.