A normal distribution has a mean of 21.5 and a standard deviation of 4.2. What is the Z-score for a sample with a value of 23? (calculate to 1 decimal)

Q: A distribution of values is normal with a mean of 205.3 and a standard deviation of 65. Find P93,…

A: It is given that the values follow normal distribution with mean 205.3 and standard deviation 65.

Q: On a standardized exam, the scores are normally distributed with a mean of 39 and a standard…

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Q: Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a…

A: Given that, Mean = 85 Standard deviation = 12 Sample size, n = 15

Q: on a standardized exam, the scores are normally distributed with a mean of 21 and a standard…

A:

Q: Assume that a normal distribution of data has a mean of 14 and a standard deviation of 2. Use the…

A: The mean of the distribution is 14. The standard deviation of the distribution is 2.

Q: A normal distribution has a mean of μ =64 and a standard deviation of σ = 8. What is the probability…

A: Obtain the standard z-score for the random variable M equals 72 The standard z-score for the random…

Q: Assume that a normal distribution of data has a mean of 12 and a standard deviation of 3. Use the…

A: Given:Mean = 12Standard deviation = 3We have to find the probability that a value lies above 15.

Q: Scores on a certain standarized test have a mean of 500, and a standard deviation of 50. How common…

A: Given, Mean = μ =500SD = σ = 50

Q: The serum cholesterol level X in 14-year-old boys has approximately a normal distribution with mean…

A: Answer -  A normal distribution with mean μ = 170 and standard deviation  σ = 30.               Find…

Q: The mean score on a dexterity test for 12-year-olds is 30. The standard deviation is 5. If a…

A: From the given information, let X be the score on a dexterity test for 12-year-old student. The mean…

Q: A normal distribution has a mean of μ =64 and a standard deviation of σ = 8. What is the probability…

A:

Q: A normal distribution has a mean of 126 and a standard deviation of 10. Find the z-score for a data…

A: The random variable X follows normal distribution. The population mean is 126 and population…

Q: What value lies under a standard score of 1.5 in a distribution having a mean of 55 and standard…

A:

Q: Assume that the IQ scores of SHS students in The College of Maasin follow a normal distribution with…

A: The normal distribution is the most useful theoretical distribution for continuous variables.  For…

Q: A normal distribution has a mean of 76 and a standard deviation of Determine the z-score for the…

A: Solution

Q: A normal distribution has a mean of μ =72 and a standard deviation of σ = 8. What is the probability…

A: Given, μ=72σ=8n=36M=x=72

Q: A normal distribution has a mean of 106 and a standard deviation of 9. Find the z-score for a data…

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Q: a normal distribution has a mean 20 and standard deviation 5. what is the z score that corresponds…

A: A normal distribution has a mean=20, standard deviation =5.

Q: A normal distribution has a mean of 113 and a standard deviation of 6. Find the z-score for a data…

A: A normal distribution has a mean of 113 and a standard deviation of 6.

Q: A normal distribution has a mean of 125 and a standard deviation of 3. Find the z-score for a data…

A: A normal distribution has a mean of 125 and a standard deviation of 3. mu

Q: For a normal distribution where the mean is 50 and the standard deviation is 10, what percentage of…

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Q: A normal distribution has a mean of 78 and a standard deviation of 7. Find the z-score for the data…

A: Given,mean(μ)=78standard deviation(σ)=7and data value(X)=95

Q: The quality grade-point averages of 300 college freshmen follow approximately a normal distribution…

A:

Q: Scores on the SAT form a normal distribution with a mean of 500 and standard deviation of 100. If…

A: We have to find the proportion of people who will be accepted.

Q: A normal distribution has a mean of μ= 54 and a standard deviation of σ=6 What is the probability of…

A: The sample size is, n = 36 The values of mean and standard deviation of the sampling distribution…

Q: A normal distribution has a mean of 20 and a standard deviation of 2. What is the z value of 17.5?

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Q: A normal distribution has a mean of 108 and a standard deviation of 6. Find the z-score for a data…

A:

Q: Assume that a normal distribution of data has a mean of 16 and a standard deviation of 4 Use the…

A: Given X is normal Distributed with mean µ = 16.0 and standard deviation σ = 4.0 now will using…

Q: Suppose a nomal distribution has a mean of 50 and a standard deviation of 3. What is Pes 47)?

A:

Q: A normal distribution has a mean of 144 and a standard deviation of 8. Find the z-score for a data…

A: Given that, μ=144, σ=8 We know that, z-score is given as, Z=X-μσ

Q: For a normal distribution with mean=500 and standard deviation=100, what X value separates the…

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: A distribution of values is normal with a mean of 71.8 and a standard deviation of 27.6. Find P12,…

A: The provided information are: Population mean μ=71.8 Population standard deviation σ=27.6

Q: A normal-shaped distribution with μ = 40 and σ = 8 is transformed into z-scores. Describe the shape,…

A: Normal distribution has a curve with bell shape which is centred at the mean of the distribution.…

Q: Suppose x is a value in a normal distribution, with a mean of 12, and standard deviation of 4, What…

A: Given: x=4μ=12σ=4 The z score of x=4 is obtained as follows: Z=x-μσ=4-124=-84=-2 Thus, the z-score…

Q: Suppose a set of data has a sample mean of 120 and a standard deviation of 14. What is the z-score…

A: Given that we have a set of data that has a sample mean of 120 and S.D. of 14.  µ=120σ= 14 , and we…

Q: A normal distribution has a mean of 134 and a standard deviation of 3. Find the z-score for a data…

A: According to the given information in this question We need to find the z score value

Q: Given a distribution with a mean of 117 and standard deviation of 42. find a value with a 7-score of…

A:

Q: On a recent quiz, the class mean was 75 with a standard deviation of 4. Calculate the z-score (to 4…

A:

Q: In a distribution of the test grades with the mean of 25 and the standard deviation of 4, what would…

A: Given,mean(μ)=25standard deviation(σ)=4grade score(X)=32

Q: Scores on the SAT form a normal distribution with a mean of 500 with a standard deviation of 100. If…

A: Let X be the sat score in the state college. X follows normal distribution that has mean µ = 500 and…

Q: If a normal distribution has a mean of 15.15 and standard deviation of 3.33, then what proportion of…

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Q: A normal distribution has a mean of 103 and a standard deviation of 3. Find the z-score for a data…

A: Solution: From the given information, µ=103 and σ=3.

Q: A normal distribution has a mean of 130 and a standard deviation of 10. Find the z-score for a data…

A: We have given that,  Let X be the random variable from normal distribution with mean (μ) = 130 and…

Q: A normal distribution has a mean of 141 and a standard deviation of 6. Find the z-score for a data…

A: The random variable X follows normal distribution. The population mean is 141. The population…

Q: A normal distribution has a mean of 147 and a standard deviation of 4. Find the z-score for a data…

A: Standardized z-score:   The standardized z-score represents the number of standard deviations the…

Q: A normal distribution has a mean of 105 and a standard deviation of 7. Find the z-score for a data…

A:

Q: A normal distribution has a mean μ = 500 and standard deviation σ = 35. Approximately what percent…

A: GivenMean(μ)=500standard deviation(σ)=35

Q: A normal distribution has a mean of 136 and a standard deviation of 10. Find the z-score for a data…

A: Given information- Population mean, µ = 136 Population standard deviation, σ = 10 We have to find…

Q: A normal distribution has a mean of 75 and a standard deviation of 7. Find the z-score for a data…

A: Given problem Given that   A normal distribution has a mean of 75 Standard deviation of 7. The…

Q: Students have a normal distribution with a mean height of 65 inches and a standard deviation of 3…

A: Given information Population mean µ = 65 inches Standard deviation σ = 3 inches We have to find the…