The range of a true normal distribution is about 6.7. Choose the correct choice. O A. The statement is false because the range varies with the height of the curve. O B. The statement is false because the range is infinite. O C. The statement is true because 100% of values fall within 6.7 standard deviations. O D. The statement is true because there are 3.35 standard deviations on either side of the mean.

Q: For a certain distribution, the measurement 12.1 is 1.5 standard deviations below the mean, and the…

A: It is given that  μ - 1.5*σ = 12.1    . . . (1) μ + 3*σ = 17.5    . . . (2)   Note: According to…

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: The objective is to interpret the provided graphical distribution. For this, the nature of the…

Q: What effect does blocking by gender have on the standard deviation of recumbent length for each…

A: We know that-When you block by gender, you are essentially creating separate groups for males and…

Q: Choose the statement(s) which is/are true of a normal distribution. 1. The graph of a normal…

A: It is given that the statements about to the normal distribution. Here, we need to find out the…

Q: The mean of a normal distribution has no effect on its spread.

A: It is a basic fact of central tendency. It is very useful in statistics.

Q: d. Find the 77th percentile for the mean score for this sample size. e. P(21.9204 < ữ < 22.6932) =…

A: d. The 77th percentile for the mean score for this sample size is,…

Q: Given a normal distribution with mean 100 and standard deviation​ 10, find the number of standard…

A:

Q: Which graph is correct option.

A: a.The area to the left of a z-score is the region under the standard normal that lies to the left of…

Q: A variable is normally distributed with mean 14 and standard deviation 2. a. Find the percentage of…

A: We have to find given probability..

Q: Private nonprofit four-year colleges charge, on average, $27,880 per year in tuition and fees. The…

A: Population mean, μ=27880 Population sd, σ=7500

Q: answer multiple choice

A: Solution If sample size becomes large than t distribution approximately equal to normal distribution…

Q: You have a Normal distribution with Mean = 54 and Standard Deviation = 7. Label the axis for this…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Choose the statement(s) which is (are) true of a normal distribution. I. it is symmetric about the…

A: Properties of normal distribution: The normal distribution is symmetric distribution. That is, the…

Q: 19. Sketch a normal curve for the distribution. Label the x-axis values at one, two, and three…

A:

Q: Private nonprofit four-year colleges charge, on average, $27,915 per year in tuition and fees. The…

A: For the normally distributed college charge, it is given that:The mean charge (in $), μ=27915.The…

Q: Private nonprofit four-year colleges charge, on average, $27,231 per year in tuition and fees. The…

A: Answer is 31332

Q: Assume that a normal distribution of data has a mean of 10 and a standard deviation of 2.Use the…

A: The provided information is as follows:The mean of the normal distribution is .The standard…

Q: As the size of a sample increases, the standard deviation of the distribution of sample means…

A: Here  Standard deviation of sample mean = σn

Q: a. State the approximate distribution of X. X ~ ___(__________,___________) b. Draw and label a…

A: a. The random variable X is defined as the household income in the United States which follows…

Q: A variable is normally distributed with mean 10 and standard deviation 2. a. Find the percentage of…

A: given data normal distributionμ = 10σ = 2

Q: A population is normally distributed with u = 100 and o = 20. a. Find the probability that a value…

A: Given that, Mean = 100 Standard deviation = 20

Q: 6. Suppose that the IQ scores of students at a certain college follow a normal distribution with…

A:

Q: The heights of women have a symmetric distribution with a mean of 63 inches and a standard deviation…

A: It is given that the heights of women follows a normal distribution with a mean 63 inches and a…

Q: Use the normal distribution of SAT critical reading scores for which the mean is 500 and the…

A: Let X be the random variable from normal distribution with mean (μ) = 500 and standard deviation (σ)…

Q: The time to complete an exam is approximately Normal with a mean of 49 minutes and a standard…

A: According to the given information in this question We need to fill the graph

Q: 11. Sixteen men and sixteen women purchased magazine subscriptions. The distribution of prices had…

A: Given that  Sixteen men and sixteen women purchased magazine subscriptions. The distribution of…

Q: Social Networking Sites A recent survey of social networking sites has a mean of million visitors…

A: Number of social networking sites =6Mean=13Standard deviation = 3.2The confidence interval formula…

Q: A variable is normally distributed with mean 11 and standard deviation 2. a. Find the percentage of…

A: Let the random variable X follows normal distribution with mean of μ=11 and standard deviation of…

Q: Help, thank you!

A: Note: Z score, Median, and Mean are not considered as measure of variations of distribution.

Q: Which statement about the normal distribution is false? Approximately 68 % of the data lie within 1…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.