government bonds are normally distributed. Based on the information, what is the approximate probability that your return on these bonds will be less than -3.5 percent in a given year? What range of returns would you expect to see 95 percent of the time?

Q: Based on historical data, your manager believes that 33% of the company's orders come from…

A: It is given that n =89 and p =0.33.

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: If the odds of winning on a scratch-off lottery ticket are 8:1,103, what is the probability of…

A: Let A be the event of getting winning on a scratch-off lottery ticket Odd against ratio=8:1103

Q: Based on historical data, your manager believes that 44% of the company's orders come from…

A: Obtain the probability that the sample proportion is between 0.22 and 0.33.   The probability that…

Q: According to a 2009 Reader's Digest article, people throw away about 11% of what they buy at the…

A: We have to find given probability

Q: According to a 2009 Reader's Digest article, people throw away about 12% of what they buy at the…

A:

Q: Based on historical data, your manager believes that 32% of the company's orders come from…

A: Given p=0.32n=89 Let the sample proportion be denoted by p^

Q: Based on historical data, your manager believes that 26% of the company's orders come from…

A: Introduction:Here, the suggested population proportion, π = 26% = 0.26.The sample size, n = 112.The…

Q: Based on historical data, your manager believes that 37% of the company's orders come from…

A:

Q: A courier service company wishes to estimate the proportion of people in various states that will…

A: number of samples, n = 330 true proportion, p = 0.05 Let, p^ be the sample proportion.  Hence p^…

Q: How do I find the z-score that corresponds to a cumulative probability of​ 0.975 using excel?

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

Q: Based on historical data, your manager believes that 33% of the company's orders come from…

A: Given p = 0.33, n = 219 Mean, μ =np = 219 x 0.33 = 72.27 Standard deviation, σ= npq = 219×0.33×0.67…

Q: The average monthly grocery bill for an individual is normally distributed with a mean of $85 and a…

A: Solution: Let X be the average monthly grocery bill for an individual is normally distributed with…

Q: The table shows the estimated distribution of injury severity by child passengers. What is the…

A: The total number of child passengers 6299677.

Q: Based on historical data, your manager believes that 33% of the company's orders come from…

A: Given: n= Sample size =52p= Probability of population proportion of orders from first time…

Q: Based on historical data, your manager believes that 30% of the company's orders come from…

A:

Q: If a probability of something happening is 1 how to convert that into percentage and find it's z…

A: We have given that,  If a probability of something happening is 1 how to convert that into…

Q: The amount of time a customer spends in a convenience store can be modeled by an exponential…

A:

Q: What is the probability that a consumer we select randomly either spends 0-2 hours shopping on the…

A: The probability that a consumer we select randomly either spends 0-2 hours shopping on the internet…

Q: a fast food center wants to estimate the proportion of people in its city that will purchase its…

A:

Q: The table shows the estimated distribution of injury severity by child passenger. What is the…

A: Given data: Injury severity <1 Year 1 to 3 Years 4 to 7 Years Row total No injury 545786…

Q: What is the estimated probability of experiencing a sore throat on waking if the duration of the…

A: The data given is as follows Patient d t y 1 45 0 0 2 15 0 0 3 40 0 1 4 83 1 1 5 90 1…

Q: In Iraq the probability that families getting a boy at birth is 10% if random families with mean of…

A: Binomial distribution and Poisson distributions are descrete probability distributions. In binomial…

Q: The random variable for a person's taxi waiting time has an exponential distribution and the average…

A: We have to find given probability.

Q: For An observer stands at an overpass of a highway and counts the vehicles that pass by. He stops…

A: Given problem Given that   For An observer stands at an overpass of a highway and counts the…

Q: The amount of time people spend at the gym follows a uniform distribution from 45 to 90 minutes.…

A: From the provided information, The amount of time people spend at the gym is uniformly distributed…

Q: g. What is the probability that the useful life of a laser exceeds five years?

A:

Q: A researcher believes that 8% of females smoke cigarettes. If the researcher is correct, what is…

A: From the given information, probability for female smoke cigarettes (P) = 8%And sample of females…

Q: The table shows the estimated distribution of injury severity by a child passenger. What is the…

A: Solution: The estimated distribution of injury severity by a child passenger is  Injury Severity…

Q: Based on historical data, your manager believes that 35% of the company's orders come from…

A: Concept of sampling distribution of sample proportion: Let a particular characteristic of a…

Q: The waiting time at a railroad crossing follows an exponential distribution, with an average time of…

A:

Q: You have conducted a series of experiments to reduce the proportion of scrapped battery cells to 1%…

A:

Q: What is the probability of selling 16 scarves in a day? (Put your result in a decimal number. Keep 3…

A: The probabilities of the  daily sales is given below:

Q: If the odds against winning on a scratch-off lottery ticket are 357:13, what is the probability of…

A:

Q: The length of adult King Cobra snakes is normally distributed with µ = 22 feet and σ = 2.5 feet.…

A:

Q: Based on historical data, your manager believes that 34% of the company's orders come from…

A:

Q: The time students take to complete an exam follows a uniform distribution and is between 30 minutes…

A: We have to find given probability.

Q: Q1. If the average number of suicide in Bollywood is 3 per year, what is the probability that…

A:

Q: A bottle contains 8 marbles: 3 are red and 5 are blue. You are to take a marble from the bottle…

A: Given  8 marble=3 (red)+5(blue)  marble  P(a red marble from bottle)=?

Q: Based on historical data, your manager believes that 39% of the company's orders come from…

A:

Q: of 20%, what is the probability that the cost will be within the estimate?

A: here given  mean =  3  coefficient of variation  =  0.20

Q: Based on historical data, your manager believes that 26% of the company's orders come from…

A:

Q: Based on historical data, your manager believes that 34% of the company's orders come from…

A: Given : p=0.34 n=175

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

A: Instruction : Use the website www.stattrek.org to calculate probability.    A policeman with a radar…

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

A:

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: For a continuous probability distribution, 0 15)?

A:

Q: The table shows the estimated distribution of injury severity by child passenger. What is the…

A: The total number of child passengers 6299677.

Q: The time between arrivals of vehicles at particular intersection follows an exponential probability…

A: