You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o = 72.5 dollars. You would like to be 98% confident that your estimate is within 5 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? Hint: Video [+] n =

Q: if probability for A = 0.11  , probability for C = 0.02 probability for B = 0.16    , probability…

A: We have to find given probability.

Q: how to get probability?

A: Probability refers to the likelihood of chance of happening of a particular event. The value of…

Q: nge receives an average in a given minute, the e calls;

A:

Q: 22. Jack had four Snicker bars and 8 Mars bars. He randomly chose a piece of candy, ate it, then…

A: Hi there! Thanks for posting the question. Since you have posted multiple questions, we are entitled…

Q: Write priori and subjective definitions of probability.

A: Prior probability: A prior probability also known as classical probability refers to the likelihood…

Q: (b) Find the probability that a student participates in less than three actjvities. The probability…

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Q: Write down general probability rules.

A: Probability- The probability is type of ratio where it is compared that how many times an outcome…

Q: Define PROBABILITY THEORY

A: Probability theory, a branch of mathematics concerned with the analysis of random phenomena. The…

Q: If the probability that an event does no occur is 0.3 determine the probability that the event…

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Q: "robability =

A: It is given that man claims he has extrasensory perception (ESP). The fair coin is flipped 28 times…

Q: Exc The following observations have been arranged in ascending order. 28, 35, 38, 54, 61, x+2,…

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Q: 92. Explain why a probability of is impossible.

A: A random experiment is an experiment in which , the set of all possible outcomes are known and exact…

Q: (d) What is the probability that a person does not watch the British Open?

A: Let's define the events first. M : The event that watch the Masters. B  : The event that watch the…

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Q: re calculus is a definition of high school graduation what are some interesting and expected…

A: This is a problem of application of derivative, Integral calculus etc.

Q: True or False In a probability model, all possible outcomes together must have a probability of 1.

A: The probability is the chance of the occurrence of an event. It is required to check whether the…

Q: P(4 science and 5 math) = 0 0/0 믐 X Ś

A: It is given that The total number of books= 13 + 9 = 22The number of selected books= 4 + 5 = 9

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A: Probability distributions are of two types, discrete and continuous distributions. Binomial…

Q: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: 5. Construct a 90% confidence interval about the travel time (in hours) of students from their house…

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Q: Three balls are selected randomly from a bag containing 4 red balls and 7 blue ones. Find the…

A: From the provided information, Red balls = 4 Blue balls = 7 Total balls = 11

Q: What does probability describes.

A: Probability is the likelihood of the occurrence of the event. It tells how often the event will…

Q: how to know more order structure and more disorder structure in probability

A: Order and Disorder Structure: In thermodynamics, entropy is often associated with the amount of…

Q: What are the two rules of finding probability of complex events?

A: The two rules for finding the probability of complex events are 1. Addition rule of probability and…

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Q: Using continuity correction,  probability of observing less than 10 successes.

A: Given: probability for less than 10 successes

Q: Suppose a gambler wins P50 if the sum of dots in a toss of a pair of fair dice is either 7 or 11,…

A: When tossing a pair of fair dice, the outcomes are, The outcomes for the sum 7 are (1, 6), (2, 5),…

Q: Adam teaches a class on probability calculus. Students have noticed that Adam is generally 3 minutes…

A: Solution

Q: Suppose that the probability that a passenger will miss a flight is 0.0937. Airlines do not like…

A: Solution-:Given: The  that a passenger will miss a flight is 0.0937 and n=54We want to find,(a) If…

Q: Probability is always a number between and inclusive?

A:

Q: How does probability work

A: Probability is the likelihood of an event or more than one event occurring.. With multiple events,…

Q: K has about 80% probability of making a free throw in basketball in each free throw is independent K…

A: K has about 80% probability of making a free throw in basketball in each free throw.

Q: how do we know when to use probability formulas such as p(x)=1-P? what are the other formulas?

A: Probability means possible results It is ratio of favorable outcomes and total outcomes.  Simple…

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Q: What does the notation P(BIA) mean? Choose the correct answer below. OA. The probability of event B…

A: Probability of given event based on in past any particular event occurred.

Q: 21. A card is drawn from a standar deck, not replaced, and anothe drawn. What is the probability c…

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Q: What mathematical background is needed to understand probability?

A: What mathematical background is needed to understand probability ?

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.