Find the z-score for the value 82, when the mean is 98 and the standard deviation is 3. OA. 2= -567 OB. 2 -0.81 OC. z=0.81 OD. z= -5.33

Q: the mean is 146, and standard deviation is 35. A score of 251 is how many z-scores above the mean?

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Q: Find the z-score for the value 62, when the mean is 56 and the standard deviation is 2. O A. z=3.00…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Find the​ z-score for the value 87​, when the mean is 82 and the standard deviation is 8. A. z=−0.96…

A: Given,mean(μ)=82standard deviation(σ)=8and the value(x)=87

Q: Test scores for a history class had a mean of 89 with a standard deviation of 8.9. Suppose a student…

A: According to the given information, we have Mean = 89 Standard deviation = 8.9 Raw score = 67

Q: Find the z-score for the value 69, when the mean is 96 snd the standard deviation is 5. z-score= ?

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Q: Find the Z-Score for a IQ  test score of 142 when the mean is 100 and the standard deviation is 15.

A: It is given that the mean and standard deviation are 100 and 15, respectively. The IQ test score is…

Q: find the z-score for the value 69, when the mean is 96 and the standard deviation is 5.

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Q: Find the​ z-score for the value 55​, when the mean is 79 and the standard deviation is 5.

A: The z score indicates how many standard deviations that a data points away from the mean. It can be…

Q: Human body temperature have a mean of 98.20F and a standard deviation of 0.62F. Sally's temperature…

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Q: Scores on a test have a mean of 6 and a standard deviation of 9. Michelle has a score of 57. Convert…

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Q: Convert score 46 to z-score if the mean is 40 and the standard deviation is 4.

A: The definition of a z-score is:   z = (X - μ) / σ

Q: Ngan scored 1 standard deviation below the class average on a statistics exam. The class average was…

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Q: A distribution of values is normal with a mean of 163.1 and a standard deviation of 74.5.

A: From the given information, the mean is 163.1 and standard deviation is 74.5. Need to fine P12. That…

Q: A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1026 h with a…

A: Given :- A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1026…

Q: he mean on an exam is 80 with a standard deviation of 5 points. If Joe scored a 90 on the exam, what…

A: given data, μ=80σ=5x=90 z score for the given data=?

Q: Find the probability that a randomly selected year of rain in Sydney, Australia has a yearly…

A: Given Population mean μ=137, population standard deviations σ=69, Let X be the rain in Sydney Note:…

Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

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Q: standard deviation

A: If the random variable X follows a distribution with mean = μ and standard deviation = σ Then the Z…

Q: The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?

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Q: Find the z-score when x is 5, mean equals 7, and standard deviation 3.

A: Solution: Let X be the random variable. Then, the z-score is calculated by using the formula

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults and those…

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Q: Brian scored an 80% on a Chemistry Exam. The average on the exam was a 68%, with a standard…

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Q: Find the z-score for the value 51, when the mean is 65 and the standard deviation is 8, rounding to…

A: Solution: Let X be the random variable. From the given information, µ=65 and σ=8.

Q: Karen scored a 76 on an exam whose mean is 74 and whose standard deviation is 8. Find her z score.

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Q: A distribution of values is normal with a mean of 246.2 and a standard deviation of 99.5. Find P78,…

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