In a distribution of 576 values with a mean of 72, at least 540 fall within the interval 67-77. Approximately what percentage of values should fall in the interval 62-82? Use Chebyshev's theorem. Round your k to one decimal place, your s to two decimal places, and the final answer to two decimal places.

Q: suppose that you hav e set of data that has a mean of 34 and a standard deviation of 6. a. is the…

A: Given: A data set has a mean of 34 and a standard deviation of 6.

Q: After 8 points are added to each score in a sample, the mean is found to be M = 40. What was the…

A: Let us have n number of scores in a sample. After adding 8 to each score sample mean will be M = 40…

Q: If 99 people had a mean income of 13,500 how much is the mean income increased by the addition of a…

A: Given information- We have given the mean income of 99 people is 13,500. We have to find the…

Q: tudent obtained the mean of 58 observations as 48. It was later found that one observation was…

A: Given data, n=58 The mean for 58 observations is 48 x=∑xn48=∑x58∑x=2784

Q: physicians

A: Number of success = x= 3145 n=5804

Q: 00 job applicants took an IQ test and their scores are normally distributed with a mean of 100 and…

A: given data, 100 job applicantsμ=100σ=20formula of z score:=x-μσ

Q: Suppose X - N (-9,4). Between what a values does 95.48% of the data lie? The range of a values is…

A:

Q: After 5 points are added to each score in a sample, the mean is found to be M=45 . What was the…

A: Given data: c = 5 points are added to each score in a sample. New mean, M = 45 Let the original mean…

Q: a. n=2 ∑ni=1xi=20. The mean is b. n=4 ∑ni=1xi=80 The mean is

A: It is given that,Part a) Part b) To find the mean value in both cases.

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: A sample of scores has a mean of ? = 65 and ? = 15. Find the z-scores that correspond to the…

A: We have given that.   X~N( μ , ?^2 )   μ=65 , ?=15   Z-score =( x - μ )/?

Q: in a distribution of 600 values the mean is 90 and the variance is 225. answer each using…

A: Chebyshev's inequality : Chebyshev's inequality then implies that the likelihood of an observation…

Q: a survey of Town X found an average of 3.2 perosns per household and a mean of 1.2 televisions. I f…

A:

Q: A research firm claims that the distribution of the days of the week that people are most likely to…

A: The question is about categorical data analysis.Given :

Q: A sample data consisting of 221 values is ordered in an increasing order. The median is Select one:…

A:

Q: A sample of n = 8 scores has a mean of M = 10. After one score is removed from the sample, the mean…

A: The mean is given by: M = 1n∑i=1nxiwhere, n is the total number of observations & xi's are the…

Q: A population with a mean of u= 9 has EX = 54. How many scores are in the population? ON= 9 ON=7 N= 6…

A:

Q: Suppose X∼N(−4,4)X∼N-4,4. Between what xx values does 99.72%99.72% of the data lie?   The range of…

A: Solution

Q: On a certain exam, Tony corrected 10 papers and found the mean for his group to be 75. Alice…

A: Given: Tony corrected 10 papers and mean for his group is 75 and Alice corrected the remaining 20…

Q: The mean of a class is 23.6 years. How old would a 26th student have to be for the mean age of the…

A: Given data The mean of a class is 23.6 years

Q: find the mean if Z-score =14, st.Dev.=2.5, for a score of 8.5

A: Standard normal distribution:The standard normal distribution is a special case of normal…

Q: Suppose the mean of X is 6. What is the mean of Y if a = 0.66 and Y=aX?

A: From the provided information, Mean of X is 6 that is E (X) = 6 a = 0.66

Q: Name Lois Chris Meg Peter Brian Stewie Exam1 57 46 45 18 98 96 Exam2 70 42 58 99 90

A: Given that,the mean of exam 2 is  65.Exam 1 and Exam 2 scores are given:NameExam 1Exam…

Q: A random sample of six music students played mistakes in music each student made was record times,…

A: Applying a paired 't' test, sample size,n=  6 Mean (d̄)  =Σd/n                = 21/6…

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: Scores on a test have a mean of 66 and a standard diviation of 9. Michelle has a score of 57.…

A: Given,          Mean μ=66          Standard deviationσ=9          Michelle has a score X=57

Q: A study found that 1.21% of Social Security recipients are too young to vote. If 800 Social Security…

A:

Q: Suppose there are 5 students in a room. The mean age is 19.8 years, and the median age is 19. If the…

A: Note: It is assumed that the ages are distinct and conclusions are made based on this assumption.

Q: In a psychology class, 40 students have a mean score of 89.5 on a test. Then 24 more students take…

A: Given,n1=40 , x¯1=89.5n2=24 , x¯2=78.3

Q: A sample of n = 10 scores has a mean of 20.  A person with a score of 1 is replaced with a person…

A: The sample size, n=10 The sample mean, x=20