What proportion of a normal distribution is located between the mean and z= -1.40? Question 16 options: 0.0808 0.4192 -0.0808 -0.4192

Q: A normal distribution has mean 69.6 and standard deviation 4.05. Find the data value corresponding…

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Q: Use the normal distribution of SAT critical reading scores for which the mean is 502 and the…

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Q: normal distribution of scores has a mean of 10.3 and a variance of 5.16. What is the exact…

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Q: what percent of values fall between 5.25 and 8.75 if the mean =9 and standard deviation =2.36

A: Answer: From the given data, Mean (μ) = 9 Standard deviation (σ) = 2.36 X follows normal…

Q: he mean and variance for a standard normal distribution is:  A. mean = 1, variance = 0  B. mean =…

A: The expected value of a distribution is affected by an addition or subtraction or multiplication or…

Q: A normal population has a mean μ = 34 and standard deviation σ = 10. What proportion of the…

A: normal distribution μ = 34σ = 10 P(x<51) = ?

Q: Using Chebyshev’s theorem, solve these problems for a distribution with a mean of 80 and a standard…

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Q: For the standard normal curve, what percentage of data is located between ¥-2 0 and ¥+20?

A: Note: Thank you for the question. Since notations are not clear to us, we have considered it as μ-2σ…

Q: Suppose XX has a normal distribution with mean 4040 and standard deviation five. Between what values…

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Q: In a standard normal model, what percentage of values are less than 2.15? 2) In a standard normal…

A: We have given that Standard normal distribution  X~N(0,1) mu=0 , sigma =1 Z-score =(x-mu)/sigma

Q: Suppose you have a normal distribution with a mean of 10 and a standard deviation of 2.…

A: According to the given information, we have Given that the normal distribution with a mean of 10 and…

Q: What proportion of a normal distribution is within one standard deviation of the mean? (b) What…

A: Given normal distribution is within one standard deviation of the mean

Q: Assuming that the raw score of 140 students in Calculus follows a normal curve distribution with a…

A: given data  normal distribution  μ = 44.3τ = 9.05n(x>53.35) = ? n = 140

Q: Find the Z-score that describes the following proportions under the normal curve (within 0.01…

A: The area is middle 20%.

Q: Use the standand normal distribution table to determine the percent of data between z=−0.51 and…

A: Given that : z=−0.51  and   z=0.73 By using the standard normal distribution we solve this problem.

Q: An IQ of 140 is converted into a z-score of z=1.40. what proportion of the normal distribution is…

A: Given : An IQ of 140 is converted into a z-score of  Z = 1.40

Q: A normal distribution of scores representing ones fear of crime is analyzed.  Higher scores indicate…

A: The question is about normal distribution.Given :Population mean score (  ) = 6Population standard…

Q: A random variable Y has normal distribution with a mean of 80 and a standard deviation of 15.  What…

A: Mean()=80Standard deviation()=15

Q: Suppose that x has a normal distribution with mean ? = 50 and standard deviation ? = 5. Find P(x >…

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Q: Suppose X is normally distributed with mean ?=46 and standard deviation ?= 12. Calculate the z-score…

A: Given that, Mean = 46 Standard deviation = 12

Q: The sample mean x (with a bar above) is the best point estimator of the sample mean u(mu) True or…

A: Sample mean: The sum of the all observations of sample divided by the total number of observations…

Q: Using z-scores, a population with u = 37 and o = 6 is standardized so that the new mean is u = 50…

A: Given

Q: A population is normally distributed with a mean of 25 and a standard deviation of 3. What is the z…

A: GIVEN DATA,μ=25σ=3X=18z=?

Q: what would be the probability that you would select any one individual who falls between +1 and -2…

A: Given that,

Q: A normal distribution has a mean of 100 and a standard deviation of 2. If 69,146% of the data are…

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Q: Consider a normal distribution with µ=72 and ó=12 1. What is the score at the 25th percentile? 2.…

A: Given that, μ=72,σ=12 (1) The score at the 25th percentile is Therefore, the score at the 25th…

Q: What x-values correspond to the middle 40% of a population (20% on each side of the mean) with a…

A: Given that,  μ=21.4,σ=2.3 The x-values correspond to the middle 40% of a population are,

Q: for a normal distribution with a population mean of 74 and a standard deviation of 8, what is the…

A: given data normal distributionμ = 74σ = 8to saperate top 60% x = ?

Q: what percent of values fall between 5.25 and 8.75 if the mean =7 and standard deviation =1.75

A: Mean=7 Standard deviations=1.75

Q: t is the least percentage of data that falls within 2.5 standard devia

A: This Chebyshev's theorem can be applied to any type of distribution. To use Chebyshev's theorem, it…

Q: Suppose X has a normal distribution with mean 30 and standard deviation five. Between what values of…

A: Empirical rules:1) P(μ-σ<X<μ+σ)=68%2) P(μ-2σ<X<μ+2σ)=95%3) P(μ-3σ<X<μ+3σ)=99.7%

Q: The distribution will be approximately a normal curve with mean_____and standard deviation_____ .

A: It is given that Mean = 104 And SD = 18 Sample size n = 100

Q: what percent of values fall between 5.25 and 8.75 if the mean =5 and standard deviation =1.86

A: Answer: From the given data, Mean (μ) = 5 Standard deviation (σ) = 1.86 X follows normal…

Q: Give as much information as you can about the P-value of the single-factor ANOVA F test in each of…

A: The given information about the number of treatments, total number of observation and F-value.

Q: Consider a normal distribution with mean= 500 and SD= 70  (this was the original SAT…

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Q: In a normal distribution, what percentage of the population lies with-in 1 standard deviation of the…

A: In a normal distribution, there are predefined percentage of the population which lies in 1 standard…

Q: About what percentage of a normal distribution falls within 2.5 standard deviations of the mean?

A: 98.76 percentage of a normal distribution falls within 2.5 standard deviations of the mean

Q: For a population with  = 15, a raw score of X = 82 corresponds to z = -0.60.  What is the mean for…

A: Consider that the mean and standard deviation of a random variable x are µ and σ, respectively.…

Q: A normal population has a mean μ = 40 and standard deviation σ = 8. What proportion of the…

A: NORMAL DISTRIBUTION ,μ=40σ=8 proportion of the population is between 37 and 48=?

Q: Suppose X is normally distributed with mean ?=56 and standard deviation ?= 7. Calculate the z-score…

A: Given that, Mean = 56 Standard deviation = 7

Q: A normal distribution has a data point 28.2 with a z-score of 1.4. If the standard deviation is 3.8,…

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Q: what is the standard normal curve that lies between "-2.16" and 2.16

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