your score in the original distribution?

Q: The effects of a weight loss drug are standard normally distributed where negative data values…

A:

Q: The mean can be thought of as the balancing point of a distribution. According to this description,…

A: Mean          A mean is the simple mathematical average of a set of two or more numbers. The mean…

Q: b. determine the mode of the distribution.

A:

Q: The average retirement age in America is 65 years old. Do small business owners retire at an older…

A: c For the given sample values, x¯=68.0625, from the excel function, =AVERAGE(F1:F16)s=5.9830, from…

Q: Which of the four sets of data represents a normal distribution? O (1, 2, 3, 3, 3, 2, 1) {-10, -8,…

A: We have given that the four sets of data. Here we need to find out that which one showing the normal…

Q: Why is normal distribution important in statistics and in everyday life?

A: Normal Distribution is important in statistics because many natural phenomena follows Normal…

Q: Explain the the Chi-Squared Distribution?

A:

Q: What the different shapes of the distribution tell us about the measures of central tendency.

A: The measures of central tendency are mean, median and mode.

Q: . Compare the median and the mean and sta about the distribution. Comment on how th tion relates to…

A: CI Freq 300-307 10 307-314 15 314-321 41 321-328 84 328-335 86 335-342 43 342-349 18…

Q: In a sample of n=6 scores, five of the scores are each one point above the mean. Where is the sixth…

A:

Q: Based on this graph what was the approximate distribution of the averages?  X~___(___,___)

A: Central limit theorem (CLT): According to CLT, for a given sufficiently large sample size from a…

Q: Say, for a different dataset consisting of 15 observations, the corresponding normal probability…

A: Here, There are 15 observations given and the slope for the data is equal to 7.21 and y_intercept is…

Q: Find the proportion of Normally distributed observations with a z-score below 2.56. Give your answer…

A: Given Z=2.56

Q: State two of the main reasons for studying the normal distribution.

A: The two main reasons for studying the normal distribution are as follows:The normal distribution is…

Q: Sketch the normal distribution with a. µ = 3 and σ = 3.b. µ = 1 and σ = 3.c. µ = 3 and σ = 1.

A: a.The normal distribution with  is,

Q: A score below which a specific percentage of a distribution falls is referred to as the a) Mode b)…

A: Solution: Here, it is to find which definition belongs to a statement “a score below which a…

Q: When we standardize using​ Z-scores, the shape of the distribution changes.   True…

A: Changing the values in z-scores does not change the shape of distribution. Clearly if values are…

Q: The IQ scores of children in a special education class are normally distributed with μ = 95 and σ =…

A:

Q: how to know if something is a normal distribution or not

A: Introduction:Several tests of normality exist, using which you can verify whether a particular data…

Q: Calculate the median temperature (rounded off to one decimal place) and describe the distribution of…

A: The frequency distribution of minimum temperatures in Cape Town over the past 50 days is shown in…

Q: Estimate the mean of the distribution.

A: From the given histogram, we are considering the approximate frequency values: Class interval…

Q: The distance of Josh throwing a javelin are normally distributed. What is the percentage of these…

A:

Q: For the distribution (-1,0,1), what is the sample variance?

A:

Q: a. What is the distribution of X? X - N( b. What is the median giraffe height? ft. c. What is the…

A: here AS PER GUIDELINES I HAVE CALCULATED 3 SUBPARTS  The mean height of an adult giraffe is 19 feet.…

Q: What does it mean when a score is in the tail of a distribution?

A: The distribution in statistics or probability is the shape in which the data behaves when plotted.…

Q: The number of days travelers purchase their airline tickets ahead of their flights can be modeled by…

A:

Q: Which is correct for a distribution that is skewed to the left?

A:

Q: What is the z-score of the 31st percentile?

A: The z-score for the 31st percentile is the value such that 31% of the area under the standard normal…

Q: A variable is approximately normally distributed. If you draw a histogram of the distribution of the…

A: Justification:A variable is approximately normally distributed.If the variable is approximately…

Q: Is this a binomial distribution? Explain.

A: Here use basic rule of binomial

Q: Research has shown that IQ scores form a normal distribution with a H = 100 and o = 15. We also know…

A: Given Information: Mean, μ=100 Standard Deviation, σ=15

Q: Approximately what percentage of the scores in a normal distribution lie between Z = -1 and Z=-2? 2%…

A: P(-1<Z<-2)=?

Q: Sketch the normal distribution with a. μ = 3 and σ = 3. b. μ = 1 and σ = 3. c. μ = 3 and σ = 1.

A:

Q: explain normal distribution with examples?

A: The normal distribution is the most important probability distribution in Statistics because it fits…

Q: if its 80th percentile is the value 160, what is the value that corresponds to its 20th percentile

A: Given, Mean, μ = 140 80th percentile is the value 160. x = 160

Q: A population has a mean of 45 If 6 points are added to each score What is the mean for the…

A:

Q: a) Briefly explain the Normal Distribution, its derivation and use.

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Give an example of a distribution that might be  non-normal.

A: Any skewed distribution would be the example of non-normal distribution, for example chi-square, or…

Q: The mean is the 50th percentile of any normal distribution.  True  False

A: The mean is the 50th percentile of any normal distribution.

Q: what is the distribution of the coefficient of variation?

A: A coefficient of variance is used to determine the precision of an estimated value. It is primarily…

Q: a. What is the distribution of X? X N( b. What is the median giraffe height? ft. c. What is the…

A: Define the random variable, X : Height of an adult  Given that the Height of an adult follows a…

Q: Sketch the normal distribution with a. μ = −2 and σ = 2. b. μ = −2 and σ = 1/2. c. μ = 0 and σ = 2.

A: a. Sketch for the normal distribution with mean –2 and standard deviation 2 is as follows:

Q: Statistically what is “all the children are above average.” mean

A: The mean (average) is referred to the central measure of the given data. The mean value indicates…

Q: discuss the shape of the distribution of the variable  WEIGHT.

A: From histogram we want to tell the shape of distribution

Q: What are the characteristics of a normal distribution?

A: Normal distribution- It is a frequency distribution curve. It is also called bell shaped curve. In…

Q: For a binomial distribution, Mean the distribution. 7, and Variance = 11. Comment on

A:

Q: According to the Empirical Rule, in a Normal Distribution of data you will have

A: We know that Empirical rule : 68% data lies within one standard deviation of the Mean. ( μ ± σ) 95%…

Q: What are the percentages of scores that fall between a)-1 and 0/0 and 1 b) -1 and -2/1 and 2)c in…

A: Given Empirical rule: For a normal distribution, 68% of values fall within 1 standard deviation of…

Q: In the Standard Normal Distribution, what is the probability of getting a z-score between -.54 and…

A: We have given that a standard normal distribution with z-scores -0.54 and 1.68.

Q: Suppose we changed the definition to the average number of dots after forty rolls. Would this…

A: