Find the probability that an observation taken from a standard normal population will be more than -2.16.
Q: Suppose in a sample one number from a standard normal distribution, what is the probability it will…
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Q: For a normal population with µ = 100 and σ = 9, what is the probability of obtaining a sample mean…
A: According to the given information, we have Mean = 100 Standard deviation = 9 Sample size = 25
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Q: Which describes a normal distribution with mean μ and variance o²?
A: here use basic of normal distribution curve
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A: It is given that Mean, μ = 49.3 Standard deviation, σ = 11.8 Z-Score, Z = ( X-μ )/σ
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A: Given Information: Population mean (u) = 24 minutes Standard Deviation (s) = 3.80 minutes Target…
Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…
A: The probability value is calculate by means of standard normal variate with the random variable,…
Q: The average number of moves a person makes in his or her lifetime is 12. If the standard deviation…
A: From the provided information, Mean (µ) = 12 Standard deviation (σ) = 3.2 Sample size (n) = 36 a)…
Q: The probability that an observation taken from a standard normal population will have z greater than…
A: A z-score is a standard score that indicates the number of standard deviations a data value is from…
Q: The empirical rule relates the standard deviation of a population to the probability of where a data…
A: The given statement rule relates the standard deviation of a population to the probability of where…
Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…
A: X follows a Normal distribution with mean = 182000 and S.D = 39000 Then z=(x-mean)/SD =…
Q: (a) A 120-watt fluorescent light has an average brightness of 1986 lumens, with a standard deviation…
A: Given : μ=1986 σ=94
Q: The distribution of the number of viewers for the American idol television show follows a normal…
A: a) Probability that next week show will have between 30 and 34 million viewers: The probability that…
Q: Suppose the random variable xx has a normal distribution with μ=300μ=300 and σ=30σ=30. Find the…
A: Given: μ=300, σ=30.
Q: The mean of a normal probability distribution is 600; the standard deviation is 20. About 68% of…
A: given data normal distribution population mean = 600 population sd = 20
Q: A particular leg bone for dinosaur fossils has a mean length of 60 inches with standard deviation of…
A: Given: X= length of leg bone for dinosaur fossils Mean of X = 60 inches Standard deviation of X =…
Q: An asset has an average return of 11.45 percent and a standard deviation of 23.04 percent. What is…
A: Given information- Mean = 11.45% Standard deviation = 23.04% We know that- A probability of 16%…
Q: A major application of analytics in marketing is determining customer retention. Suppose that the…
A: Given The customer leaving for another carrier from one month to the next is 0.14
Q: A final exam in science 160 has a mean of 73 with a standard deviation of 7.8. If 25 students are…
A: Given information- Population mean, µ = 73 Population standard deviation, σ = 7.8 Sample size, n =…
Q: Given a normal distribution with μ=45 and σ=5 For this distribution, 9% of the values are…
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Q: For a population mean of 35, a sample was taken with a mean value of 40 and sample size equal to 30.…
A: Given data,μ=35σ=20x=40n=30P(X>40)=?
Q: The life of a certain type of automobile tire is normally distributed with mean 34,000 miles and…
A: We have to find given probability..
Q: Aaliyah is 74 years old. Based on a normal distribution with mean 47.8 and standard deviation 12.6,…
A: GivenAaliyah is 74 years oldx=74Mean(μ)=47.8standard deviation(σ)=12.6
Q: For a normal random variable with mean 650 and standard deviation 40, find the probability that its…
A: Given information- Population mean, μ = 650 Population standard deviation, σ = 40 Let X be the…
Q: The average age of accountants is 43 years, with a standard deviation of 5 years. If an accounting…
A: From the given information, Mean = 43 Standard deviation = 5 Sample size = 30
Q: The empirical rule relates the standard deviation of a population to the probability of where a data…
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Q: Assume that the height of people, measured in inches, has a normal distribution with a mean of 65…
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Q: Assume the average weight of a schoolchild's book bag is 17.5 pounds, with a standard variation of…
A: Let X be a random variable that denotes the weight of the child's school bag. Then, it is provided…
Q: makes a distribution a normal distribution?
A: Properties of normal distribution a) The mean , median and mode of a distribution is same it is…
Q: 2. The average number of mice in a 5-acre rice field is estimated to be 80. Find the probability…
A: Given,The average no.of mice in 5 acre field is 80so, the average no.of mice in 1 acrefield…
Q: If 200 scores a taken at random from a normal distribution with mean 70 and standard deviation 5,…
A: From the given information, the value of mean is 70, standard deviation is 5 and sample size (n) is…
Q: A certain type of battery has a mean shelf life of 600 days with a standard deviation of 28 days…
A: given mean =600 standard deviation =28
Q: The annual per capita consumption of bottled water was 33.3 gallons. Assume that the per capita…
A: Given information- Population mean, µ = 33.3 gallons Population standard deviation, σ = 12 gallons…
Q: On Mary’s FACEBOOK page, there is a 42% chance that one of her friends will write on her wall. If…
A: Given : p = 0.42 n = 2400
Q: An asset has an average return of 10.79 percent and a standard deviation of 22.71 percent. What is…
A: It is given that the mean is 10.79 and the standard deviation is 22.71.
Q: Suppose average study hours of students passing Statistics Lecture was 75 hours and standard…
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: Sketch the normal distribution with μ=4 and σ=1.
A: Given : μ=4 σ=1
Q: What is the probability that observations in a standard normal distribution will be: ?(−1.21 < ? <…
A: Given: Z follows standard normal distribution with mean 0 and variance 1 . z1 = -1.21 z2 = 0.57 We…
Q: A firm's marketing manager believes that total sales for the firm next year can be modeled using a…
A: Given: x~N(μ,σ)μ=$2,500,000σ=$300,000
Q: How would I work this problem out? Thanks
A: It is provided that X follows normal distribution with mean = 300 and standard deviation = 30.Let…
Q: Find the probability for a normal distribution p(-0.80
A: In given question does not mention that Z is either < or > Now , I'm going to solve for the…
Q: A certain type of battery has a mean shelf life of 600 days with a standard deviation of 28 days.…
A: Given: μ=600 and σ=28. The z-score is calculated asz=x-μσwhere x is number of days of the shelf life
Q: A city temperature is modeled as a normal random variable with mean and standard deviation both…
A: given data, Mean (μ) = 10 S.D(σ) =10Let X be normally distributed random variable P(X≤15) = ?
Q: The average number of moves a person makes in his or her lifetime is 12. If the standard deviation…
A: Given, Mean = 12 Standard deviation = 3.2 Sample size = 30
Q: In the Standard Normal Distribution, what is the probability of getting a z-score between -.54 and…
A: We have given that a standard normal distribution with z-scores -0.54 and 1.68.
Q: Still in the same context, aproximate the probability of having at most 26 jurors using the normal…
A: Here, n = 40 and p = 0.80.
Q: 3. If the probability of a defective bolt is 0.1, find (a) the mean, (b) the standard deviation, for…
A:
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- A manufacturer has determined that a machine averages one faulty unit for every 500 it produces. What is the probability that an order of 300 units will have one or more faulty units?Show that the probability of drawing a club at random from a standard deck of 52 playing cards is the same as the probability of drawing the ace of hearts at random from a set of four cards consisting of the aces of hearts, diamonds, clubs, and spades.