Rank correlation co-efficient : The marks secured by 10 student of B.Com. in two subjects Economic and Statistics are given below, the two numbers within brackets denoting the ranks of the same students in Economics and Statistics respectively. Use spearmains formula to find the rank correlation co-efficient. (1, 8) (2, 7) (3, 5) (4, 9) (5, 10) (6, 4) (7, 3) (8, 2) (9, 1) (10, 6).

Q: Coefficient of correlation lies between: a. –1 and +1 b. 0 and –1 c. -3 and +3 d. 0 and +1

A: We have to find true statement.

Q: A negative correlation means that as the values on X increase, the values on Y O increase decrease O…

A: The objective of the question is to understand the meaning of a negative correlation in statistics…

Q: Rank correlation coefficient between the marks in Mathematics and Statistics obtained by a group of…

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Q: 17 Each student in a group was asked to name their transportation to school. The table shows the…

A: Answer

Q: A positive correlation between two variables, X and Y, indicates that: Group of answer choices as…

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Q: Where are the deer? Random samples of square-kilometer plots were taken in different ecological…

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Q: Listed below are amounts of court income and salaries paid to the town justices. All amounts are in…

A: Given data represents the amounts of court income and salaries paid to the town justices.…

Q: A set of n=6 ordered pairs has the following sums: Sum x=64 Sum xsqrt=814 Sum y=85 Sum y sqrt =1351…

A: The Provided information is, ∑x=64∑x2=814∑Y=85∑y2=1351∑XY=1039n=6

Q: Groups: 1 = 5-25 years, 2 = 26-59 years, 3= 60-92 years What can you conclude about mean differences…

A: Groups of people according to their age limit.Group 1 - Age group 5-25 yearsGroup 2 - Age group…

Q: The range of correlation is -1 to +1 True or false

A: In this case, we need to identify the given statement is true or false.

Q: Find out five examples of positive correlation. Find out five examples of negative correlation. Find…

A: Correlation coefficient measure degree of linear relationship between two variables.

Q: Christina obtained the following results for about 500 families: Average weight of husband = 170…

A: To estimate the average weight of women who were married to 200 lbs. men, we need to find the…

Q: Ungrouped data: The scores obtained by 30 students in the preliminary examination in MAT 3.…

A: We want arrange the data in increase order

Q: Find the value of the linear correlation coefficient r. Toyota Motors designed 2 different tests to…

A: X=25, 25,28,21,20,25,26,30,35,36 Y=49,51,59,42,49,53,55,63,67,75 We want to find correlation (r)

Q: Find the weighted mean for a particular student's scores on three exams if the first one was worth…

A: The weighted mean can be calculated as: Weighted mean = Sum of (weightage x score) / Sum of…

Q: The mode for the data : 22,17,18,25,22,52,27,33 is equal to

A: From the given information,  it is clear that,  The data is, 22, 17, 18, 25, 22, 52, 27, 33 First we…

Q: The ranks of students in Hindi (R1) and Economics (R2) are given Hindi (R1) Economics (R2) 6. 2 4 3…

A: The ranks of students in Hindi (R1) and Economics (R2) are given.

Q: 3. The following data are based on information from the book Life in America's Small Cities (by G.S.…

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Q: find the value of x if the numbers 7, x, 3, 9, 2 have a mean of 5.8

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Q: (6,9),(8,15),(2,16),(10,22) What is the best estimate for the linear correlation coefficient and…

A: If we draw al line thorough scattered plot it will give us estimate approximately 0.50

Q: 1st Data Set: 5,4,1,6,5,5,6,5,6,6,15,5,6,13 (SD=3.54)

A: Given that data  Arrange the data in ascending order. 1,4,5,5,5,5,5,6,6,6,6,6,13,15 IQR = Q3 - Q1

Q: Statistics teacher realize that his studentS keep using cell phones during the class. Then he did…

A: Given information Population mean µ = 7.2 hours Sample size n = 127 Sample mean x̅ = 6.8 hours…

Q: of 4 he number of hours a student spends studying and the score on that student's exam. correlation…

A: In a correlation analysis, the correlation coefficient is the exact measure that determines how…

Q: If you have 10 variables when computing correlation coefficients how many unique coefficients will…

A: It is provided that there are a total of 10 variables for which the correlation coefficients are…

Q: If the correlation coefficient r is equal to 0.585, find the coefficient if determination and the…

A: Given r=0.585

Q: 10 8- 6. 4. 2- 10 6.

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Q: CORRELATION ANALYSIS Table 4.8 Test of correlation between dependent variables Correlation Matrix…

A: Hi! Thank you for the question as per the honor code, we’ll answer the first question since the…

Q: The correlation between amount of sleep students get the night before the test and their performance…

A: In case of positive correlation, when the value of one variable increases then value of other…