Suppose that X is normally distributed with mean 80 and standard deviation 18. A. What is the probability that X is greater than 103.04? Probability = B. What value of X does only the top 16% exceed? X =
Q: The average American man consumes 9.6 grams of sodium each day. Suppose that the sodium consumption…
A:
Q: The average American man consumes 9.9 grams of sodium each day. Suppose that the sodium consumption…
A: X denotes the amount of sodium consumed. a. consumption of sodium by American men is normally…
Q: A normal distribution has a mean of 0 and a standard deviation of -1.0. Is this possible? Explain.…
A: I want to tell you which one is the correct choice Given Normal distribution with mean=0 and…
Q: The SAT scores for students are normally distributed with a mean of 1030 and a standard deviation of…
A:
Q: Suppose that the heights of men in the United States are normally distributed with a mean of 65.6…
A: The mean is 65.6 and the standard deviation is 2.7.
Q: Most colleges here in the Philippines requires applicants for admission to take the College…
A: Consider X : scores on CAT X~Nμ=527,σ=112
Q: The f-statistics is the variance between groups divided by the variance within groups. True False…
A: The F statistic is defined as the ratio of the two sample variances.
Q: Suppose that XX is normally distributed with mean 90 and standard deviation 17. A. What is the…
A:
Q: The mean height of an adult giraffe is 18 feet. Suppose that the distribution is normally…
A: Solution: Let X be the height of a randomly selected adult giraffe. From the given information, X…
Q: SAT exam math scores are normally distributed with mean 523 and standard deviation 89. We take a…
A:
Q: the mean for test 1 is 50. and the standard deviation is 7. then the probability that a group of 49…
A: Mean(μ)=50 standard deviation(σ)=7
Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual…
A: let X: IQ X~N(μ,σ)where, mean(μ)=100 and standard deviation(σ)=15
Q: The average American man consumes 9.8 grams of sodium each day. Suppose that the sodium consumption…
A: From the provided information, Mean (µ) = 9.8 grams Standard deviation (σ) = 1 grams
Q: A) has a mean öI 100 and a standar deviation of 10. What is the probability that X will be smaller…
A: We have given that. X~N( μ , ?^2 ) μ =100 , ? =10 Z-score =( x - μ )/?
Q: Diastolic blood pressure is a measure of the pressure when arteries rest between heartbeats. Suppose…
A: Given Mean=70.1 Standard deviations=10.2 n=4
Q: The length of a fully grown hibiscus plants is normally distributed and has a mean of 35cm and a…
A: Given that,Mean(μ)=35standard deviation(σ)=4 The random variable is length of fully grown…
Q: The average score of all golfers for a particular course has a mean of 70 and a standard deviation…
A: μ=70,σ=4.5,n=81
Q: The mean height of an adult giraffe is 17 feet. Suppose that the distribution is normally…
A: Mean, μ=17 Standard deviation, σ=1 Let X be the height of a randomly selected adult giraffe. X ~…
Q: A normal distribution (X) has a mean of 100 and a standard deviation of 10. What is the probability…
A: A normal distribution (X) has a mean of 100 and a standard deviation of 10.
Q: For a measure of body weight, converted to z or standard scores, what is the probability of having…
A: Solution For standard normal distribution, Mean=0 & standard deviation = 1. Find:
Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…
A: Let the distance be, X. Then, the population mean = μ and variance = σ2. Thus, we can say, X ~…
Q: 10000 students take 100-points exam, 6300 of them passed the exam; if the distribution of the scores…
A: Given data: Total students = 10000 Passed students = 6300 Mean = 70 Standard deviation = 8
Q: Los Angeles workers have an average commute of 34 minutes. Suppose the LA commute time is normally…
A: Given information- Population mean, μ = 34 minutes Population standard deviation, σ = 14 minutes Let…
Q: Data from an experiment show that the standard deviation is 3.6 and the mean is 23.4. Find the…
A:
Q: The average American man consumes 9.6 grams of sodium each day. Suppose that the sodium consumption…
A: Given H=9.6 and σ=1 (a) Then, the distribution of X is, X ~ N(9.6 grams ,1 grams)
Q: The standard deviation is also called the give-or-take value. True
A: we have to state that the given statement is true or false. statement : The standard deviation is…
Q: The average American man consumes 10 grams of sodium each day. Suppose that the sodium consumption…
A: given data normal distribution μ = 10σ = 0.8
Q: Los Angeles workers have an average commute of 27 minutes. Suppose the LA commute time is normally…
A: Let us consider, X be a random variable which is used to denote the commute of LA Angels workers…
Q: Assume that a normal distribution of data has a mean of 16 and a standard deviation of 3.Use the…
A: Population mean =16 Standard deviation =3 We have to find the percentage of values lies
Q: Scores on a test are normally distributed with a mean of 78 and a standard deviation of 6. A student…
A: Given: Mean μ=78 Standard deviation σ=6 A student is selected at random.
Q: According to a recent study, 22% of people like sour candy. Suppose we obtain a random sample of 114…
A: Given: p=0.22 n=114
Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…
A: We have given that, X be the random variable from normal distribution with mean (μ) = 62.6 ,…
Q: 5. The heights of NBA basketball players closely follow a Normal distribution with a mean of u = 79…
A: Z-Score: It is a dimensionless quantity that is used to indicate the signed, fractional,…
Q: On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of…
A: Given information Mean µ = 107 Standard deviation σ = 17
Q: If n=7 (days in a week) and p=0.45 (the probability that the food truck operates on a single day),…
A: Given information- Sample size, n = 7 The probability that the food truck operates on a single day…
Q: ose return is normally distributed with mean of 8% and a standard deviation of 5%. A. Determine the…
A: When the percentage of return is less than 0% the person will loose money.
Q: a. The probability that a pregnancy will last 308 days or longer is (Round to four decimal places as…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- A. Solve the following. Show your complete solution. 1. Say that you will have to wait for a bus. Assume that the amount of waiting time is normally distributed between 0 and 15 minutes. Suppose that the mean time of a person is 8 minutes and the standard deviation is 1.8. What is the probability that you will wait for less than 12.5 minutes? 2. The length of time between charges of the battery of laptops is normally distributed with a mean of 45 hours and a standard deviation of 12 hours. Fiel owns one of these laptops and wants to know the probability that the length of time will be between 50 and 70 hours. 3. The length of life of an ordinary flashlight produced by a company has a normal distribution with a mean of 36 months and a standard deviation of 5 months. Find the probability that the flashlight produced by the company will last (a) more than 18 months, (b) between 17 and 32 months.The mean height of an adult giraffe is 17 feet. Suppose that the distribution is normally distributed with standard deviation 1 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to 4 decimal places where possible. b. What is the median giraffe height? ? ft. c. What is the Z-score for a giraffe that is 18.5 foot tall? d. What is the probability that a randomly selected giraffe will be shorter than 16.9 feet tall?On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 102 and a standard deviation of 18. Suppose one individual is randomly chosen. Let X = IQ of an individual.Find the probability that a randomly selected person's IQ is over 99. Round your answer to 4 decimal places.A school offers special services for all children in the bottom 6% for IQ scores. What is the highest IQ score a child can have and still receive special services? Round your answer to 2 decimal places.Find the Inter Quartile Range (IQR) for IQ scores. Round your answers to 2 decimal places.Q1: Q3: IQR:
- Suppose that X is normally distributed with mean 80 and standard deviation 30. A. What is the probability that X is greater than 137? Probability = B. What value of X does only the top 10.93% exceed? X =The mean of a normal probability distribution is 120 the standard deviation is 10. About what percent of the observations lie between 110 and 130IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Find the probability that this person has an IQ greater than 138. Round your answer to 4 decimals. P(IQ greater than 138) =
- A random variable X forms a normally distributed data set with mean 94.2 and standard deviation 2.41 . Determine the probability that X is at most 94.2. (Express your final answer in 4 decimal places)What is the standard deviation of 10, 20, & 30? Show your solutionThe NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
- A population of values has a mean of 38.5 and standard deviation of 80.4. Find the probability that a sample of 247 values from this population will have a mean between 31.3 and 44.1.Suppose that X is normally distributed with a mean 90 and standard deviation of 28. A. What is the probability that X is greater than 130.6? Probability = B. What value of X does only the top 14% exceed? X =z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?