Is it possible for a probability sample to be biased and to also lack independence? Please explain.

Q: From Theoretical and Experimental Probability, which of the two method is more appropriate and valid…

A: Theoretical probability is determined based on the prior information. Theoretical probability :…

Q: Why can’t all the probabilities for a Poisson random variable be displayed in a probability…

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Q: What is the probability of rolling 15 with a pair of dice? nlikely likely impossible

A: Impossible. Reason: As maximum sum of two dice can be 12. So, 15 is impossible probability i.e., has…

Q: What are the example of experiments or activities wherein we can apply the computation of…

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Q: a. What is the expected number of children that should report cognitive impairment related symptoms…

A: 4. A research program is concerned about the potential exposure to hazardous lead levels at a…

Q: Explain the probability distribution of Size n random distribution?

A: The probability distribution of size n for random variables describes how the probabilities are…

Q: What are the difficulties of learning random variable and probability distribution?

A: We know that the,  A random variable is a variable whose value is unknown OR a function that…

Q: Explain the Difference between the sample space and random variables?

A: Sample space: The sample space is the collection of all outcomes, if a random experiment is…

Q: What does the power of a hypothesis test tell you? How is it related to the probability of making a…

A: Solution: It is required to mention what does the power of a hypothesis test tell you? How is it…

Q: It is known that a certain drug causes side effects in 10% of patients. If we consider a random…

A: Let, X= number of patients who have the side effect  Given that probability of success= p= 10%=0.10…

Q: What is the probability of randomly selecting an adult who has a heart rate between 60 BPM and 70…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: explain the chebyshev's theorem and its relevance to probability distribution

A: #explain the chebyshev's theorem and its relevance to probability distribution??

Q: In your own words, define a random variable.

A: We need to define Random Variable.

Q: The best way to determine if a statistical hypothesis is true is to examine a random sample from the…

A: Statistical hypothesis - Statement regarding nature of population * it stated in terms of population…

Q: What is a random variable?

A: A random variable is a variable whose possible values are numerical outcomes of a random phenomenon.…

Q: How can the sample covariance be used to estimate the covariance of random variables?

A: The covariance is used to measure the relationship between two random variables, that is, to what…

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: What is a possible result of an experiment called in the study of probability

A: Given: A possible result of an experiment in the study of probability.

Q: What is the probability of selecting a sample with the proportion of females being 0.56 or greater?

A: here p =  proportion of female in US =  0.51  n = 500

Q: How can we calculate the probability-weighted average of the squared deviations?

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Q: What is non probability sampling and explain the types of the same

A: Probability sampling is the sampling technique that allows a researcher to select a sample where the…

Q: how can statistical procedures can help determine whether the data is attributable to chance…

A: Statistical approaches can be quite useful in identifying whether or not data is due to chance. To…

Q: Show Differentiate between a significance level and a probability level?

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Q: If the probability of contracting a certain illness is 0.0433, would it be considered statistically…

A: Let p be the probability of contacting a certain illness  Given  p=0.0433

Q: what can you learn about random variable and probability distribution?

A: Random variable and probability distribution : First understand both terms separate - Random…

Q: What is the distribution of sample means? How does the concept of probability and the distribution…

A: Introduction -   Hypothesis - A hypothesis is an approximate explanation that refers to the set of…

Q: Explain PPS (probability proportionate to size)?

A: PPS (PROBABILITY PROPORTIONATE TO SIZE) METHOD: →PPS Method/Sampling is also known as probability…

Q: When two unbiased dice are thrown, find the expected value of the product of the numbers shown on…

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Q: Under what circumstances is non-probability samplingpreferred to probability sampling?

A: As per given by the question, under what circumstances is non-probability sampling preferred to…

Q: Suppose that a high school student is preparing to take the SAT exam. Explain why his or her…

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Q: Describe how a probability value is used to cast doubt on the null hypothesis?

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Q: Waleed decided to construct a probability distribution of tossing five coins. Construct a…

A: Construct a probability distribution table for the given experiment using the binomial experiment.…

Q: What is the relationship between the joint probability and marginal probabilities of two independent…

A: The relationship between the joint probability and marginal probabilities of two independent events…

Q: USA Today reported that about 22% of all people in the United State are illiterate. Suppose you…

A: Let X be the people who are illiterate. Let person being illiterate be success, then X follows…

Q: What are the differences between theoretical probability, subjective probability and experimental…

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Q: What concept does the mean of a discrete random variable generalize?

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Q: Is there such thing as negative probability? Or would this be considered a new variable?

A: Negative probability

Q: How does the concept of probability and the distribution of sample means relate to the testing of a…

A: We know that the sample mean distribution will be either normal distribution or T distribution. If…

Q: What type of probability involves repeating an experiment and recording the relative frequency of…

A: Probability which involves repeating an experiment and recording the relative frequencies of the…

Q: What is the missing probability? What is the median of this distribution?

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Q: What are the reasoning or arguments surrounding the below statement: "Statistical research shows…

A: The reasoning is given below

Q: LIst the strenghts and weaknesses of subjective probability as opposed to the classical definition…

A: Classical definition of probability includes possibility or chance of event occurs. for example if…

Q: The assessment of the probability of a negative event against the aggregate severity of the related…

A: Given: A statement: The assessment of the probability of a negative event against the aggregate…

Q: What is the probability of selecting a score greater than 50 from a positively skewed distribution…

A: The given values are, Since the distribution of X is not a bell shaped distribution , and we use…