What is the value of EX^2 for the scores 2,4 and 5? 11 45 36 33

Q: find out 3rd decile  65,85,75,30,20,42,94,34,75,15

A:

Q: 2. Compare. Write , or =. 3 8.

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Q: what is the answer of the last question (5.52 question) BY RStudio OR Excel

A: 5.52) Consider the random variable X represents the number of hepatoma. The value of mean is…

Q: 7. What is the value of (X-2)2 for the scores 2,3,5?

A: To find : ∑X-22 for the scores 2, 3, 5

Q: The widespread of EDUC 380 midterm scores is 5. Which of the following could be an example of the…

A: The wide spread of the measures is range. The formula for computing range is, Range= maximum-minimum

Q: The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the…

A: The cumulative frequencies are obtained in the below table:

Q: What is 30% of 79

A:

Q: Explain how you can quickly calculate the average of the following list of test scores without…

A: Given data81, 78, 79, 82All the data are centered about 8081 – 80 = 178 – 80 = -279 – 80 = -182 – 80…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: Given Information: Proportion p=0.77 Sample size n=50 Out of which x=33 records involved an…

Q: What is the average? 3,4,5,8

A: Given observation 3,4,5,8 sum = 3+4+5+8 = 20 Number of observation = 4

Q: Find the mean of 7, 7, 2, 3, 4, 1 graphically. What is the sum of the numbers? try

A: our objective is to find the mean

Q: IQR of 6,7,9,20,22,25,27,34,48,59

A: Observations are: 6,7,9,20,22,25,27,34,48,59

Q: What is the average of the following numbers? 2, 5, 8, 1

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Q: Find the missing values in the ANOVA table for a study that consists of 5 treatments with 106 total…

A: Find the missing values in the ANOVA table for a study that consists of 5 treatments with 106 total…

Q: What is the average of  2.0, 32.0, 44.0, 14.5, 7.5 ?

A: For a set of n observations, x1, x2, ... , xn, mean or average is given by, This is measure of…

Q: What is the average of        12, 22, 32, 42, ……?

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Q: How did you know to use the number 636 for your x in the hit and trial method and not use another…

A:

Q: What number comes next? 6, 1, 8, 4, 2, 7 m,

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Q: Here is a list of 27 scores on a Statistics midterm exam: 20,21,23,23,26,29,29,33,35…

A: The list contains 27 scores on a Statistics midterm exam. The data is in ascending order. The…

Q: 39. What is the value of (EX)² for the scores: -1, 0, 3, 5?

A: Given that  The data are -1,0,3,5 Find the value (∑X)2

Q: The mean of 200 items was 50. Later on it was dis- covered that two items were misread as 92 and 8…

A:

Q: Mean of (18,4,12,17,22,6 27,14)

A: We have to find the mean of the following numbers -  18,4,12,17,22,6,27,14 The formula for mean is…

Q: The mean of 11 numbers is 7. One of the numbers, 13, is deleted. What is the mean of the remaining…

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Q: The IQ score that separates the bottom 15% from the top 85% is P,5 =. (Round to the nearest…

A:

Q: In 2015, there were 680,000 police officers in the United States with yearly wages totaling $4.08 *…

A: The mean or average amount is computed by dividing the total of the data by the total number of…

Q: A national polling organization wishes to estimate the percentage of all teenagers who believes…

A: Given Information: A national polling organization wishes to estimate the percentage of all…

Q: what is 3% of 129.5

A: what is 3% of 129.5? (3/100)*129.5 0.03 * 129.5 = 3.885

Q: Jill is pulling names out of a hat in order to select students to complete her survey.  There are 9…

A: Jill is pulling names out a hat to complete a survey. The number of names in the hat is equal to 9…

Q: A researcher is given a sample with variables (x, y) where x represents the number of points a…

A: Coefficient of determination: Coefficient of determination is denoted with r2 and it explains that…

Q: the mean weight of five complete computer stations is 167.2 pounds. The weighs of four of the…

A: If we have 5 observations x1,x2,x3,x4,x5, then the mean is given by M=x1+x2+x3+x4+x55

Q: P25 means than an examiniee got 25 out of 100 item exam. True or False?

A: Partition values divide the series into a number of equal parts. * Three points which divide the…

Q: what 2 numbers have a mean of 10 and a range of 6

A: Given that, the mean of two numbers is 10 and the range is 6. Now, for two numbers,  mean = (sum of…

Q: find harmonic mean   4,6,8,9,1,2,8,7,3

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Q: There are eight boys in a preschool class. They're mean height is 33 inches, and the median height…

A:

Q: what is the mean of the set  1 , 3 , 3, 7 , 8 , 13 , 21

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Q: Professor X  gave a quiz to five students.  He remembered four of the grades 82, 88, 81, 77 and the…

A: Given observation 82, 88, 81, 77 Mean = 80

Q: Suppose the degree of student in exams was: 33,22,34,70,83,99,60,41.find mean

A: Given data 33, 22, 34, 70, 83, 99, 60, 41

Q: The high temperatures at the school were recorded every day last week as: 72, 78, 61, 48, 59, 76,…

A: The data is given as: 72, 78, 61, 48, 59, 76, 65

Q: #4) AJ got a 72% on his BIO-140 test. How many points did he earn out of the 50 points? рercent…

A: Given: AJ got a 72% on his BIO-140 test. Total points=50 AJ percentage=72%

Q: Fewer than 91% of adults have a cell phone. In a reputable poll of 1230 adults, 81% said that they…

A:

Q: What is the sum of the multiples of 6 between 8 and 70?

A: The multiples of 6 between 8 and 70 are: 12, 18, 24, 30, 36, 42, 48, 54, 60, 66

Q: What is the sum of the multiples of 5 between 12 and 92?

A: We have to find the sum of the multiples of 5 between 12 and 92. First we will identify e multiple…

Q: What are the percentages of scores between -1 and -2/1 and 2?

A: Given problem Given that

Q: Juanita read an average (mean) of 5 books a day for 4 days. How many books will Juanita need to read…

A:

Q: Find the mean of the set: {9, 14, 9, 4, 14}

A: Solution:- Given data  9, 14, 9, 4, 14

Q: 8. 21

A:

Q: What is 33% of 900?

A: Here, we need to find some percentage value of a number.

Q: what the average of  2 1/2,3 3/4 and 4 1/4

A: There are 3 values in 2 1/2,3 3/4 and 4 1/4

Q: What is the average of 12.5, 19.5, 22.5, and 33.5?

A:

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.