The value of P(-60
Q: GPAs at CCSU are normally distributed with a mean of 2.32 and a standard deviation of 0.6. Find the…
A: GPAs at CCSU are normally distributed with a mean of 2.32 and a standard deviation of 0.6.Here, and…
Q: A normal distribution has a mean of μ= 54 and a standard deviation of σ=6 What is the probability of…
A: From a normal distribution, Mean = 54 Standard deviation = 6
Q: A distribution of values is normal with a mean of 187.4 and a standard deviation of 60.8. Find P60,…
A: Consider a random variable "X".
Q: The mean score on a stress test is 5 and the standard deviation is 2. The distribution is normal.…
A: The distribution is normal with mean score on a stress test 5 and the standard deviation 2. Let X is…
Q: Scores on a standardized exam are known to follow a normal distribution with standard deviation σσ =…
A: Given information: The sample size is n= 150 The population standard deviation is σ = 11 The…
Q: High density lipoprotein in healthy males follow a normal distribution with a mean of 50 and a…
A: Solution : Given : X : High density lipoprotein in healthy males and X has normal distribution with…
Q: The average time to recover from the flu for healthy adults age 18-24 follows a Normal distribution…
A: According to the given information, we have Given that the distribution is normal. Mean = 4.42…
Q: Az-score of z = +1.00 indicates a position in a distribution Above the mean by 1 point. Above the…
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Q: find the 80th percentile of a normal distribution where x=n(50,10)
A: Step 1:Find the 80th percentile of a normal distribution.X∼N(50,10)=X∼N(μ,σ)Step 2:Find the Z-score…
Q: Scores on a standardized exam are known to follow a normal distribution with standard deviation o =…
A: From the provided information, Sample size (n) = 75 Sample mean (x̅) = 73.4 Population standard…
Q: Assume that math test scores are normally distributed with a mean of 500 and a standard deviation of…
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Q: About ? % of the area under the curve of the standard normal distribution is between…
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Q: What percentage of a normal distribution falls above a z score of -0.70? Type in your percentage and…
A: percentage of a normal distribution falls above a z-score of -0.70z-score=-0.70
Q: Scores on a standardized exam are known to follow a normal distribution with a standard deviation…
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Q: the mean number of B's on a test is 8 with a standard deviation of 1.5. find The probability of…
A: Consider a random variable X which follows normal distribution indicating the number of B’s on a…
Q: A z-score of z = -1.00 always indicates that a score is located exactly 1 standard deviation below…
A: Consider that the mean and standard deviation of a random variable x are µ and σ, respectively.…
Q: These curves represent normal distributions with different means and standard deviations. What do…
A: On the basis of the above Normal Curves given :
Q: A distribution of values is normal with a mean of 66.9 and a standard deviation of 43.1. Find P60,…
A: According to the provided information, mean = 66.9 standard deviation = 43.1
Q: A normal distribution has a mean of 0.40 and standard deviation of 0.028. According to the Empirical…
A: We have given that, X is random variable are normally distributed with mean (mu) = 0.40 and…
Q: Suppose that x has a normal distribution with mean ? = 50 and standard deviation ? = 5. Find P(x >…
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Q: A normal distribution has mean μ = 60 and standard deviation σ = 20. Find and interpret the z-score…
A: Step 1: State the given data: raw score, x = 75population mean, µ = 60population standard deviation,…
Q: For normal distribution with a mean of 4 and a standard deviation of 2, the value 5 has a z value of…
A: Mean, μ = 4 Standard deviation, σ = 2 Raw score, X = 5
Q: Assume that x has a normal distribution with mean =4 and standard deviation q=2. Find (3<x<6)
A: Given x has a normal distribution mean μ=4 standard deviation σ=2 Find p(3<x<6)=?
Q: Glucose levels in patients free of diabetes are assumed to follow a normal distribution with a mean…
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Q: normal distribution has µ=80 standard deviation of 10. what is probability of randomly selecting a…
A: Given: Calculate the corresponding Z score as follows: The probability of randomly selecting a…
Q: for normal distribution mean is 100 and standard deviation is 15 use the emperican graph and gave 1…
A: Normal distributionμ=100σ=15we draw empherical graph
Q: number of juniors in the committee? cted number of juniors in the committee is o two decimal places…
A: Given that a committee of 3 members is selected from a club made up of 8 junior members and 22…
Q: what percent of the area under the curve of the standard normal distribution is between z= -1.33 and…
A: To find the percent of area under the curve of the standard normal distribution between z = -1.33…
Q: The scores on a standardized test are normally distributed with a mean of 90 and standard deviation…
A: The test score is 0.6 standard deviations above the mean is obtained below: From the given…
Q: Don’s z-score on a given measure is -2.5, where the population mean is 5 and the standard deviation…
A: Given: Population mean (µ) = 5 Population standard deviation (σ) = 1.5 z-score = -2.5 Consider, X be…
Q: The price paid for a new phone in a particular model follows a Normal distribution with mean μ=750…
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Q: For a normal distribution with μ = 80 and σ = 3.2, determine the z-score of 78.4064. z-score =…
A: see the handwritten solution
Q: The scores on a test in a particular class follow a Normal distribution with mean μ=140 and standard…
A: We have given that Normal distribution with mean μ=140 and standard deviation σ=23 Find P(X<181)
Q: In a Normal Distribution with the Mean of 88 and the Standard Deviation of 7, find P (x > 77)
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: for a standard normal distribution, find the percentage of data that are between 3 standard…
A: The graph with percentages is,
Q: What percentage of the area under the normal curve is within +/-1, +/-2, and +/-3 standard…
A: Let Z be the random variable from standard normal distribution with mean = 0 and standard deviation…
Q: Scores on a standardized exam are known to follow a normal distribution with standard deviation 14.…
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- Approximately what percentage of scores falls between -1 and +1 Standard deviation around the mean under than normal curve?Don's z-score on a given measure is -2.5, where the population mean is 5 and the standard deviation is 1.5. What is Don's raw score? (Calculate X)P(y>250) mean is 250 and standard deviation is 50
- A normal distribution has a mean of 16 and a standard deviation of 5. use the Empirical rule to find the percentage of values in the distribution between 16 and 26In a Normal Distribution with the Mean of 77 and the Standard Deviation of 5 , find P ( x>66)High density lipoprotein (HDL) in healthy males follows a normal distribution with a mean of 50 and a standard deviation of 8. What proportion of healthy males has HDL exceeding 60?
- Scores on a standardized exam are known to follow a normal distribution with standard deviation σσ = 17. A researcher randomly selects 85 students and computes their average score. He reports that the mean score is 76.3, with a margin of error of 2.792. How confident are you that the mean score for all students taking the exam is in the interval (73.508, 79.092)? Confidence =If a distribution is normal with mean=60 and standard deviation=15 what is the z score of 40?Some students paid a private tutor to help them improve their results on a certain mathematical test. These students had a mean change in score of + 18 points, with a standard deviation of 68 points. In a random sample of 100 students who pay a private tutor to help them improve their results, what is the likelihood that the change in the sample mean score is less than 10 points? Click the icon to view the table of normal curve areas. Normal Curve Areas P(x< 10) = (Round to three decimal places as needed.) 0. .00 .01 .02 .03 .04 .05 .06 .07 .08 .09 .0000 .0398 .0793 .1179 .1554 .1915 .0 .1 .0040 .0438 .0080 .0478 .0871 1255 .0160 .0557 .0948 .1331 .1700 2054 .0120 .0517 .0199 .0596 0987 1368 .1736 2088 .0239 .0636 1026 .1406 1772 2123 0279 .0675 1064 1443 1808 2157 .0319 0714 .1103 1480 1844 2190 0359 .0753 1141 1517 1879 2224 .2 .3 .0832 .1217 .1591 1950 .0910 1293 1664 1628 .5 .1985 2019 .2257 .2580 .2881 .3159 3413 2291 2611 .6 .7 .8 .9 1.0 2324 2642 2939 3212 3461 2357 2673 2967…
- tolic blood pressures are assumed to follow a normal distribution with n of 85 and a standard deviation of 12. What proportion of people have diastolic blood pressure less than 90?The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 17 days. What percentage of pregnancies last fewer than 314 days? P(x < 314 days) = P(z<What percent of the area under the curve of the standard normal distribution is outside the interval z=-2.479 and z=2.476 or within 2.479 standard deviations of the mean ?
