Which statement about the normal distribution is false? Approximately 68 % of the data lie within 1 standard deviation of the mean. Approximately 99.7 % of the data lie within 3 standard deviation of the mean. None of these is true. Approximately 95 % of the data lie within 2 standard deviation of the mean. SAMSUNG

Q: a successful basketball player has a height of 6 feet 9 inches, or 206 cm. Based on statistics from…

A: Given,           Z -score=4.45           A basket ball player has a height of  6 feet 9…

Q: The spread or dispersion of a set of data about the mean will be large if the standard deviation is…

A: Solution

Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

A:

Q: Assume that weights of men are normally distributed with a mean of 160 pounds and a standard…

A: Given, Weights of men follows normal distribution with mean 160 pounds and standard deviation 25…

Q: A recent poll found that 59% of adults believe the state of moral values is poor. For 400 randomly…

A: Here, n = 400 and p = 0.59

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

A:

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: The mean of a set of data is 108.06 and its standard deviation is 115.45 What is the z score for a…

A: Z-score = 3.3045 answer.

Q: The sample standard deviation is one measure that describes the value in the sample that the data…

A: A single number that seeks to represent a set of data by identifying the center position within that…

Q: Jim and Pat are both taking Calculus. Jim scored 92 on a test in his class. The average on the test…

A: To find: Who actually did better? Include the Z-scores as part of the answer.

Q: Two students, Will and Tom, want to find out who scored relatively higher on a science midterm. The…

A: We have to find z score and Which student scored higher on the midterm when compared to their…

Q: Determine the number of standard deviations from the mean (z-score). In the United States, the…

A: Given mean female height = 64 inches and standard devaiton = 3 inches.The distance of a data point…

Q: samples of n = 100 from

A:

Q: Suppose a variable is normally distributed. What percentage of scores fall between one standard…

A:

Q: A statistician uses Chebyshev's Theorem to estimate that at least 90 % of a population lies between…

A: We have to find correct answer for given data..

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

A:

Q: Karen’s first psychology exam score is ‑1 (negative one) standard deviation from the mean in a…

A: It is given that, the z-score for Karen’s first psychology exam is -1.

Q: her wishes to give A’s to the top 8% of the students and F’s to the bottom 8%. The next 10% will be…

A: given: mean(μ)=78 sd(σ)=8

Q: The data {9, 5, 5, 9, 2} represent a random sample of the number of days absent from school for five…

A:

Q: The deviation of an entry x in a population data set is the difference between the entry and the…

A: Note: Hi there! Thank you for posting the question. It is considered that the deviation is taken…

Q: A commonly used standardized test in psychology research is designed so that the mean score of all…

A: From the provided information, Mean (µ) = 140 Standard deviation (σ) = 20 X~N (140, 20) Here X be a…

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

A: Given: Formula: Let "X" be the people who have diastolic blood pressure. Find:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 105   and a standard…

A: It is given that the mean and standard deviation are 105 and 15, respectively.

Q: Assume a new measure of Intelligence Quotient (or IQ) has been developed. The mean IQ for the…

A: The standard deviation is defined how much deviation from the mean is called standard deviation.

Q: art professor gives an A to any student in the top 9% of the distribution. The grades are normally…

A: Given X~N(mean μ=60, standard deviations σ=5) P(X>b)=9%

Q: Exam scores have a normal distribution, with Mean of 70 and Standard deviation of 10. Bob’s score…

A: Exam scores have a normal distribution, with Mean of 70 and Standard deviation of 10. Bob’s score…

Q: a variable has a mean of 100 and a standard deviation of 36. Sixteen observations of this variable…

A: Given: n=16,μ=100,σ=36,x=115,s=24

Q: SAT scores have a mean of 1026 and a standard deviation of 209. ACT scores have a mean of 20.8 and a…

A:

Q: Assume the test scores in your class are normally distributed with a mean of 84. You scored a 96,…

A: Given: mean = 84.

Q: A distribution of data has a mean of 26 and a standard deviation of 2. How many standard deviations…

A: Population mean μ =26 Population standard deviation =2

Q: Suppose that the amount of caffeine (in milligrams) in an 16 fluid ounce energy drink can be modeled…

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

Q: ind the percentage of area under a normal curve between the mean and the given number of standard…

A: The mean and standard deviation of the standard normal distribution are 0 and 1.

Q: What is the relationship between the variance and the standard deviation for a sample data set? A.…

A: Variance: Variance is defined as a measure of variability to represent members of a group. The…

Q: The results of a common standardized test used in psychology research is designed so that the…

A: Given Information: Population mean (u) = 165  Standard deviation (σ) = 10  Score earned by a subject…

Q: A population has a Mean of 100 and a standard deviation of 15.  A sample of 20 college students is…

A: Given information- Population mean, µ = 100 Sample mean, x-bar = 125 Population standard deviation,…

Q: Assume that the SAT test scores are normally distributed with a mean score of 1200 and a…

A:

Q: unts how many meteors she se

A:

Q: A student scores 74 on a geography test and 264 on a mathematics test. The geography test has a mean…

A: The mean and standard deviation of geography test are 80 and 5, respectively.

Q: Let’s assume that weight is normally distributed with a mean of 160 and a standard deviation of 25…

A: Step-by-step procedure to obtain the middle 80% 0f all people lie between which two weights using…

Q: At a tennis tournament a statistician keeps track of every serve. The statistician reported that the…

A: