The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 130, while the mean score was 79 and the standard deviation was 11. (34,13.5,2.35,0.15) 46 57 68 79 90 101 112 Distribution of Test Scores What is the approximate percentage of students who scored between 79 and 112 on the test? % What is the approximate percentage students who scored between 68 and 90 on the test? What is the approximate percentage of students who scored between 68 and 79? % What is the approximate percentage of students who scored less than 57 on the test? %

Q: Given a set of data that is skewed-left, there is at least _____ % of the data within 3 standard…

A: From the given information, Consider, As it has been given that data is left skewed as a result one…

Q: Suppose your statistics professor graded your test with a Z Score.  You earned a 3.25 on a test with…

A: Answer:- Given, Mean, µ = 71  Standard deviation, σ = 8  And Z-score = 3.25  We need to find the…

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: Mary took 4 courses last semester: Calculus, Physics, Biology, and History. The means and standard…

A:

Q: The mean score of 25 students in an English test is 85. If three more students took the test and had…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A: Given: Data 85 70 25 68 53 74 31 52 58 52 44 33 86 38 47 44 43…

Q: П. Distribution of Data - Bell Curve A test was given to 250 students. The mean was 80 and the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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: Which of the following z scores are above the mean? Choose all that apply.     0     1.35…

A: For normal distribution, the mean is equal to 0

Q: The table on the right gives the annual income for eight​ families, in thousands of dollars. Find…

A: We have given the following dataFamilyABCDEFGHIncome4742474543454843

Q: Enrique and his classmates recorded the distances, in miles, they each traveled for spring break.…

A:

Q: The table on the right gives the annual income for eight families, in thousands of dollars. Find the…

A: Given that following data Family Income x A 49 B 51 C 46 D 48 E 47 F 48 G 45 H 50…

Q: ould have the right to marry. (The 2014 data were collected before the 2015 US upreme Court decision…

A: There are four types of level of measurement, i.e.,  Ratio scale: data is continuous and have a…

Q: find the mean, standard deviation, the IQR, and tell how the data is skewed, if it is. using the…

A: If the distribution is divided into two parts and the two sides are a mirror image of each other,…

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: 1. Using the formulas, compute the mean and standard deviation of this sample of scores.  45 58 63…

A:

Q: A distribution has a mean of 30 and a standard deviation of 5. Approximately 68% of the distribution…

A: according to the Empirical rule .

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: The given information is that the mean score is 74 and standard deviation is 15.

Q: The value of the stanard error of the mean for the scores :  1,2,3,4,5 ?

A: Solution: Let X be the random variable. The given data is 1, 2, 3, 4 and 5.

Q: Which of the following statement is true ? A. The range is a measure of central location B. The…

A: We know, A. Mean is a measure of central tendency B. The standard deviation is a measure of…

Q: pasting the output into Word and attaching it to your post. Graph the data as a histogram with a fit…

A:

Q: The mean score on a set of 17 tests is 85. Suppose two more students take the test and score 62 and…

A: we need to find new mean using given conditions

Q: The mean weight of a class of 35 students is 45 kg. If the weight of the teacher be included, the…

A: Given, The mean weight of a class of 35 students is 45 kg.

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A: Given data: 64 59 67 40 53 55 48 65 73 47 67 48 78 49 84 74 37 73 80 88 47 40 92 10

Q: The average house has 10 paintings on its walls. Is the mean different for houses owned by teachers?…

A: The number of paintings on the wall of 14 surveyed teachers (i.e., n=14) are:10, 9, 13, 13, 9, 10,…

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

A: 36) Answer:- Given, The IQ scores (X) of adults are normally distributed with a mean of 100 and a…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: GIVEN DATA, normal distribution μ=100σ=15we have to find out the indicated IQ score for the given…

Q: x Y 5 1 4 1 3 2 2 3 1 4

A: The median is the middle number is an ordered set of data. Add 1, 1, 2, 3 and 4 is the values of Y.…

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: C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals should have…

A: Given information: GSS 2014 and GSS 2018 respondents were asked their opinion on whether…

Q: The table below gives the annual income for eight families, in thousands of dollars. Find the number…

A: Given : Family A B C D E F G H Income 51 53 52 50 49 50 47 48

Q: elect ALL the ways that variation in the data can be measured below. A. The mean of the data B. The…

A: We have to find ways that variation in the data can be measured

Q: n the right gives the annual income for eight​ families, in thousands of dollars. Find the number of…

A:

Q: The graph illustrates the distribution of test scores. The mean score was 73 and the standard…

A: