+ 36 42 + 48 a. The mean is 54 Based on the graph of this normal distribution, b. The standard deviation is 60 c. 68% of the data values are between and + 66

Q: n a set of score, the coefficient of variation (in percentage terms) = 50% and standard deviation =…

A: The coefficient of variation is the ratio of the standard deviation to the mean. It is a measure of…

Q: The middle 20% of a normal distribution is located between z = –0.25 and z = +0.25. True or false

A:

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

A:

Q: A sample of the number of sick days used by employees at a clinic is as indicated: 0,    0,    1,…

A: Given data 0,0,1,1,2,4

Q: Q2. Find the standard deviation for the data: 5,10,7,12,0,20 7

A: We have to find the standard deviation for the data: 5,10,7,12,0,20

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

A:

Q: Which expression entered into a graphing calculator will return the probability that a data value in…

A:

Q: Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized that the…

A: Given:Here use the formula;here,  represents the value of Standard Daviation.

Q: In an  administration to 2000 student the average score is 65 and the standard deviation is 25.…

A: Given in an administration to 2000 student the average score is 65 and the standard deviation is 25.…

Q: In a normal distribution, find the mean when standard deviation is 6 and 3.75% of the area lies to…

A: From the provided information, Standard deviation (σ) = 6 3.75% of the area lies to the left of 85.…

Q: onsider this data set { 9, 3, 8, 8, 9, 8, 9, 18}. Find the standard deviation, s. Round off your…

A: given data, 9,3,8,8,9,8,9,18we have to find out the standard deviation(s) for the given data. x…

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: 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: The middle 95% of a group of 1000 students got scores ranging from 50 to 90 on a math test. If the…

A: Normal Distribution: Understand the properties of the normal distribution, including the mean (μ)…

Q: 35 48 61 74 87 100 113 Distribution of College Algebra Course Grades What is the mean of this normal…

A: The normal distribution is a type of continuous distribution where most of the data lies in the…

Q: Find the mean and standard deviation for the individualized instruction scores. Scores…

A:

Q: Scores on an exam were normally distributed. Ten percent of the scores were below 64 and 80% were…

A: Introduction: Consider X as a normally distributed random variable, with mean μ and standard…

Q: Distribution of College Algebra Course Grades What is the mean of this normal distribution? What is…

A: Mean of the normal distribution is where the peak is present and about what point, the curve is…

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

A: Given,mean(μ)=100standard deviation(σ)=15

Q: In normally distributed data, what percent of the data lies on the interval 2 standard deviations…

A:

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: 30 41 52 63 74 85 96 Based on the graph of this normal distribution, a. The mean is c. The mode is…

A: For a normal distribution we know that mean=median=mode.

Q: The lifespans of lizards in particular zoo are normally distributed. The average lizard lives 3.1…

A: It is given that the lifespans are normally distributed with an average lifespan of 3.1 years.   It…

Q: 69 78 87 96 105 114 Based on the graph of this normal distribution, a. The mean is b. The median is…

A: Given graph is

Q: coefficient of variation is 30%. Its mode Is 88. Find the mean and the median.

A: Here given, Pearson's coefficient of SKEWNESS = 0.4 Coefficient of variation  = 30% = 0.30 Mode = 88…

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

A:

Q: instructor gives a 100-point examination in which the grades are normally distributed. The mean is…

A: It is given that  Mean, μ = 66 Standard deviation, σ = 5 Z-Score, Z = ( X - μ )/σ

Q: The average number of words in a romance novel is 64,289 and the standard deviation is 17,272.…

A: Given information: The average number of words in a romance novel is, μ=64289 The standard deviation…

Q: In a normal curve, the percentage of the scores between one and two standard deviations above the…

A: Solution