If the mean of a symmetrical distribution is 130, which of these values could be the median of the distribution? A. 110 ОВ. 130 О с. 150 D. 170

Q: The trimmed mean is

A: From the data, the smallest observed value is 0.77, and largest observed value is 0.97. By removing…

Q: for this set of data, the standard deviation is equal to: 9,8,10,5,5,2,3,6,3

A: Mean:The formula for finding mean is shown below:

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: In a negatively skewed distribution, the mean will generally be the median. O a. Less than O b.…

A:

Q: exam is 53.48 and the mean for that same exam is 44.23.  What would be the shape of the distribution…

A: For any Normal distribution, the shape of the distribution can be said if the mean, median and mode…

Q: In a series of 5 observations, the values of mean and variance are 4.4 and 8.24. If three…

A:

Q: One sample with n = 4 scores has a mean of M = 12, and a second sample with n = 6 scores has a mean…

A:

Q: The mean of a distribution is 23, the median is 24 and the mode is 25.5. It is most likely that this…

A:

Q: Which of the four sets of data represents a normal distribution? O { 10, 12, 13, 13, 13, 14, 16} O…

A:

Q: Among social work students, the variable "number of textbooks purchased during the academic year"…

A: The Normal distribution is also called as the Gaussian distribution. It is the most common…

Q: If in a data set the observation 78 has z-score equal -0.60 and the observation 88 has z- score…

A:

Q: A bookstore found out that 23% of their customers buy a book, 34% of their customers buy two books,…

A: Given: Let X represents the number of books that customers buy. The random variable X can take…

Q: A history class has 95 members. If there is a 22% absentee rate per class meeting , find the mean…

A:

Q: If the mean of a list of numbers is 16.7 and the standard deviation is 0,

A: Mean is a measure of central tendency. It is one of the most important measures to find out around…

Q: In a certain distribution of​ numbers, the mean is 80 with a standard deviation of 3. At least what…

A:

Q: Given that a set of scores have a normal distribution, a mean of 74, and a standard deviation of 5:…

A:

Q: The arithmetic mean and the standard deviation of a set of 9 items are 43 and 5

A:

Q: If on an average 8 ships out of 10 arrive safely at a port, find the mean and standard deviation of…

A:

Q: In a medical study, a researcher wishes to select respondents in the middle of 45% of the population…

A: Given, In a medical study, a researcher wishes to select respondents in the middle of 45% of the…

Q: If the mean is seven and the standard deviation is two, what value is three standard deviations to…

A: It is given that the The mean is 7 and the standard deviation is 2 i.e. μ =7 and σ =2. We have to…

Q: If Quiz A has a mean of 7.6 and a standard deviation of 2.0 and Quiz B has a mean of 7.9 and a…

A:

Q: Out of a class of 25 students, 24 took an exam in class and got a mean of 74 points and a standard…

A: Given: Total number of students, n = 25            Number of students who gave the test, n' = 24…

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: 1)If all of the values in a set of data were doubled, what would happen to the mean?

A:

Q: A line for tickets to a broadway show had a mean waiting time of 20 minutes with a statistic…

A: Given: Mean,  μ=20 Standard deviation, σ=5 Sample size, n= 200 Use normal approximation here, the…

Q: Find the standard deviation for the group of data items.   15​, 15​, 15​, 17​, 17​,

A:

Q: The arithmetic mean and the standard deviation of a set of 9 items are 43 and 5 respectively . If an…

A:

Q: What is the percentile rank for a student who scored 74 on a softball rules test if the class mean…

A:

Q: If a variable has a mean of 53, a median of 62, and a standard deviation of 4, What is its skewness?

A: The formula to find skewness is given below:

Q: 2. In a departmental examination on statistics, the mean grade was 64 and the standard deviation was…

A: Determine the number of students took the examinations.   The number of students took the…

Q: -of the data in a distribution is within 3 standa the mean? 66% 0% 50% 89%

A: Solution : According to the Chebyshev's theorem, (1-1/k^2) of the observation fall within k standard…

Q: In moderately asymmetrical distribution, the value of median is 42 and the value of mode is 40. Find…

A: Given: Median = 42 Mode = 40 Distribution is moderately asymmetrical

Q: A population has µ = 50 and o - 5. If 10 points are added to every score in the population, what are…

A:

Q: You are given the following set of observations:  98, 77, 26, 33, 88, 90, 79, 81.  What would be the…

A: Here, we have 8 observations, where if the observations are represented by x1,x2,...,x8, then the…

Q: Suppose that the mean and standard deviation of the scores on a statistics exam are 81.7 and 6.75,…

A:

Q: If on an average, 6 ships out of 10 arrive safely, find the Mean and the S.D of the number of ships…

A:

Q: In a certain test in Calculus, the mean score of a group of 100 students was 30 and the standard…

A: The mean for calculus is 30 and standard deviation is 8, the mean for physics is 52 and standard…

Q: Suppose the distribution for monthly rental prices for a one-bedroom apartment in a large city is…

A: Right skewed distribution : A Right skewed distribution is also known as positively skewed…

Q: If the mean is 8.35, and the standard deviation is 2.5, what will be the answer to this? How many…

A:

Q: The mean grade of Adrian in the final examination in mathematics was 85 and the standard deviation…

A: 1) Given that: Mean for mathematics = 85 Standard Deviation for mathematics = 7 Mean for science =…

Q: The A.C Nielsen company reports that about 85.5% of U.S households have a color T.V. Find the mean…

A: The mean number of households have a color T.V is, μ=np=6×0.855=5.13 Thus, the mean mean number of…

Q: Florida State University, the mean IQ is 116 with a standard deviation of 14. Given this…

A: In the School of Medicine at Florida State University, the mean IQ is 116 with a standard deviation…

Q: If a distribution is normal with μ = 60 and σ = 15, what proportion of the scores fall between 60…

A: If X~N(μ,σ2), then Z=X-μσ is called the standard normal variate. The mean and variance of a standard…

Q: If the mean of a positively skewed distribution is 126, which of these values could be the median of…

A: Ans - Given, the mean of positively  skewed distribution is 126

Q: Compute for the mean, the variance and standard deviation of this frequency distribution. Score…

A:

Q: The mean grade of Adrian in the final examination in mathematics was 85 and the standard deviation…

A: For mathematics :mean(μ)=85standard deviation(σ)=7For sciencemean(μ)=89standard deviation(σ)=13

Q: In a moderately skewed distribution, the arithmetic mean is  10 units and the mode is  7 units, find…

A: Formula for Median If mean and mode are given  Median = ( Mode + 2 * Mean ) / 3

Q: Suppose the main percentage in algebra is 70% and the standard deviation is 8% What percentage of…

A: Given,  mean value(μ) =70%  standard deviation(σ) = 8%Z=x-μσZ1=62-708=-1Z2=94-708 =3

Q: • - Find the mean deviation for the following data set {7,23,11,44,46,23,28,30,32,43,47}

A: