The life time of an electrical part follows an exponential distribution with mean of 5 years. Calculate the probability the life of the part is less than two years. .67 .6 .33
Q: Today, the waves are crashing onto the beach every 4.9 seconds. The times from when a person arrives…
A:
Q: Find the Z score associated with probability. (Round the answer to two decimal places).
A: Here you're asked to find Z score associated with probability. The given probability is comes from…
Q: Terri Vogel, an amateur motorcycle racer, averages 129.51 seconds per 2.5 mile lap (in a 7 lap race)…
A: Let , X be the number of seconds for a randomly selected lap The random variable X follows Normal…
Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…
A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…
Q: Assume that adults have IQ scores that are normally distributed with a mean of μ= 105 and a standard…
A: given data normal distributionμ = 105σ = 15p(X<129) = ?
Q: Identical twins come from a single egg that split into two embryos, and fraternal twins are from…
A: Given that, Identical twins come from a single egg that split into two embryos, and fraternal twins…
Q: Find the area to the left of z = -1.5 Solution: Dr sh
A: P(Z<-1.5)=?
Q: 20 26 40 39 25 36 34 Solve for the mean deviation and standard deviation
A: Given : 20 26 40 39 25 36 34 Here n=7 i.e Sample size (n)=7
Q: Suppose that the weight of an newborn fawn is Uniformly distributed between 2.1 and 3.6 kg. Suppose…
A: If X ~U(a,b) Then E(X)= b+a/2 V(X)= (b-a)^2/12 19th percentile is equal to 19/100
Q: Find the z-scores for which 95% of the distribution's area lies between -z and z. O-0.96 0.95 O…
A: The area between two boundaries is 95%. In, the remaining percentage 5% (=100%–95%) area, 2.5% area…
Q: The average American gets a haircut every 39 days. Do college students get their hair cut less…
A: A hypothesis test is a statistical method that uses sample data to evaluate a hypothesis about a…
Q: 3. In a set of scores that are normally deviationsbelow the mean is 11.4 and the score three…
A: We have given that, Let μ be the mean and σ be the standard deviation from the normal distribution.…
Q: An inventor suggested in the nineteenth century that the letter "t" made up 8% of the English…
A:
Q: Solve using R calculator. Show all work.
A: The probability shows how likely an event occurs.
Q: A psychologist has designed a questionnaire to measure individuals' aggressiveness. Suppose that the…
A:
Q: Solve using R Caculator The average hourly wage for manufacturing workers in the United States is…
A: The data on the hourly wages of manufacturing workers is provided.The given data has a normal…
Q: Calculate the probable error of the mean. A. +0.0247 B. +0.0055 C. +0.0167 D. +0.0037
A: To find the probable error of the mean ,firstly we find most probable value of measurement then we…
Q: Assume that adults have IQ scores that are normally distributed with a mean of μ= 105 and a standard…
A: given data,normal distribution μ=105σ=15probabilty that selected asults has an IDQ score less than…
Q: The question is, What is the level of measurement and is it a discrete or continuous variable?…
A: Here, we have given that Highest year of school completed 0-20. Actual number of years 97. IAP, 98.…
Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…
A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15 X~N (100, 15) Here X be…
Q: Find the area of the shaded region The graph to the right depicts IQ scores of adults, and those…
A: Given μ=100, σ2=152 X~N(μ=100,σ2=152) P(X>98)= ? Note: This probability value calculated from…
Q: Fill in the missing values in the table. Round your responses for the expected frequencies to two or…
A: To fill the missing values.
Q: 1. The height in meters that a pole vaulter can clear in his final attempt is an example of C.…
A: Introduction :- Here all the questions are of multiple choice questions. We have to select correct…
Q: Based on the graph above, which statement best describes the graph? Answer O The two distributions…
A: The graph of two normal distribution plotted on the same x-axis.
Q: Provide an appropriate response. Construct a 95% prediction interval for y given x = 2.5, y = -2.5x…
A:
Q: FIND THE P VALUE GIVEN THIS DATA The total time (in minutes) a subject spent on the Trail…
A: Given, n1 = 41 n2 = 49x1 = 104.23 x2 = 62.24 s1 = 45.45 s1 = 16.34Level of…
Q: An inventor suggested in the nineteenth century that the letter "t" made up 8% of the English…
A: It is known that, the mean of the sampling distribution of sampling distribution, p-hat is equal to…
Q: Use the z-score formula, z = , and the information below to find the mean, μ. Round your answer to…
A: Givenz-score(z)=3.75x=19.6standard deviation(σ)=1.2
Q: Terri Vogel, an amateur motorcycle racer, averages 129.98 seconds per 2.5 mile lap (in a 7 lap race)…
A: Given Information: The distribution of her race times is normally distributed. Mean μ=129.98 seconds…
Q: The length of time a particular smartphone's battery lasts follows an exponential distribution with…
A: The length of time a particular smartphone's battery lasts follows an exponential distribution with…
Q: Write the normal probability for the shaded region of the graph and find its value. Select the…
A: Given,n = 16p = 0.55q = 0.45
Q: Using the image answer the following. Find the probability that a randomly selected hoysehold in…
A: Mean()=138standard deviation()=46
Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…
A:
Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…
A: normal distributionμ = 100σ = 15P(80<x<105) = ?
Q: Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given…
A: As per guideline expert have to answer first question three subparts only dear student please upload…
Q: A sample of 100 tyres is taken from a lot. The mean life of tyres is found to be 39, 350 kilo meters…
A: Solution-: By using R-Software: #Given :xb=39350,mu0=40000,n=100,sdx=3260#To test the hypothesis as…
Q: What is the of the mean 0. P(X=x) 0.15 0.20 0.15 0.50 3.
A:
Q: Solve for the mean, variance and standard deviation
A: here given discrete probability distribution of x
Q: Cme that 3 out of 2500 babies were born with kidne the year before the accident. Also assume that 11…
A: Consider, X be the random variable that represents the number of coffee cups that customer drinks…
Q: Q5 In a class of 35 students the CGPA of the class are summarized as Ex² = 562. Find the mean and…
A: Given,sample size(n)=35∑xi=112and ∑xi2=562
Q: Tign pres of adults, and res are normally distributed with a mean of 100 and a standard deviation of…
A: Population mean=100 , population standard deviation =15
Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…
A: Given: X~N(μ,σ)X-IQ scores of adultsμ=mean=100σ=s.d=15 P(X<110)=Area of shaded region=?
Q: b) The following table shows the time students from a college took to complete a marathon. Time…
A:
Q: Explain the relationship between the Poisson and exponential distribution.
A: It is an application of probability distribution. It is widely used in statistics.
Q: The average amount of money spent for lunch per person in the college cafeteria is $7.15 and the…
A: Given,sample size(n)=46mean(μ)=7.15standard deviation(σ)=2.64
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- Please answer A-CSuppose that the heights of adult women in the United States are normally distributed with a mean of 65 inches and a standard devlation of 2.4 inches. Heather is taller than 75% of the population of U.S. women. How tall (In inches) is Heather? Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place. Check acer esc % @ 23 5 6 7 1 r t eQ21
- Terri Vogel, an amateur motorcycle racer, averages 129.42 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.29 seconds . The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. (Source: log book of Terri Vogel) Let X be the number of seconds for a randomly selected lap. Round all answers to 4 decimal places where possible. b. Find the proportion of her laps that are completed between 131.37 and 133.62 seconds. ? c. The fastest 3% of laps are under ? seconds. d. The middle 40% of her laps are from ? seconds to ? secondAssume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P12, the 12th percentile. This is the bone density score separating the bottom 12% from the top 88%. Which graph represents P12? Choose the correct graph below. P12 The bone density score corresponding to P12 is (Round to two decimal places as needed.) O B. P₁2 ✔ C O C. P12 O D. P12K Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15 Click to view page 1 of the table. Click to view page 2 of the table. 0.7 Q
- A normal probability plot of data from a sample of a population is shown to the right. Assess the normality of the variable under consideration. 3- d: Choose the correct answer below. Que OA. The relationship is not linear, so the variable under consideration is probably not normally distributed. OB. The relationship is approximately linear, so the variable under consideration is probably normally distributed. OC. The relationship is not linear, so the variable under consideration is probably normally distributed. on 1 (1 on 5 (0 OD. The relationship is approximately linear, so the variable under consideration is probably not normally distributed. on 9 (1 re: ANormal score Ś 10 15 20 75.3.29 Find the z-scores for which 40% of the distribution's area lies between -z and z. Click to view page 1 of the table. Click to view page 2 of the table. The z-scores are (Use a comma to separate answers as needed. Round to two decimal places as needed ) nter your answer in the answer box and then click Check Answer.Give an example of a small set of dara for ehich the mean is larger than the third quartile
- Terri Vogel, an amateur motorcycle racer, averages 129.52 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.28 seconds . The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. (Source: log book of Terri Vogel) Let X be the number of seconds for a randomly selected lap. Round all answers to 4 decimal places where possible. b. Find the proportion of her laps that are completed between 128.81 and 131.26 seconds c. The fastest 3% of laps are under ____ seconds. d. The middle 80% of her laps are from __________ seconds to __________ seconds.A researcher claims that at least 10% of all football helmets have manufacturing flaws that could potentially cause injury to the wearer. A sample of 200 helmets revealed that 16 helmets contained such defects. Does this finding support the researcher's claim? Use a = 0.03. Find the P-value. The proportion of football helmets with flaws The P-value is i ✓ 10%. . Round your answer to four decimal places (e.g. 12.3456).M1a6
