calculate the correlation coefficient for the data shown and describe the relationship.

Calculate the correlation coefficient for the data shown and describe the relationship. x 43 40 44 42 41 45 43 44 y 44 43 40 45 43 42 40 44 => - 0.216; weak negative relationship or - 0.126; weak negative relations..

There are two things that should be done before doing regression analysis. They are: I. Collect the data and then construct a scatter plot to determine the nature of the relationship. II. Collect the data and construct a histogram. III. Compute the value of the co..

A teacher wanted to know the relation between the midterm scores and final scores. She has randomly selected ten students and their respective scores as shown. Calculate the correlation coefficient and describe the relationship. Student A ..

The life expectancy at birth (years) of males and females in some countries is shown here. Males 67 69 69 57 55 54 50 49 50 48 Females 77 76 72 60 59 57 53 51 49 50 Calculate the correlation coefficient and describe the relation. => + 0.98; strong p..

The coach of an NBA team wanted to know the relationship between the heights of his players and the average points scored by them in each game. After certain rounds of games he had this data. Player A B C D E F G H I J Height (in inches) 71 78 79 80 82 84 81 81 74 80 Points (avg..

A shirt manufacturing company wanted to check for the number of defective shirts being produced out of a total of 100 shirts by 10 different machines in two consecutive days. The data obtained is shown here. Machines 1 2 3 4 5 6 7 8 9 10 Day I 3 7 2 4 5 1 8 4 6 0 Day II 4 8 4 3 ..

A shop owner wants to find the relation between the demand ( x 1 ), supply ( x 2 ) and the price ( y ) of an item. After 6 months he got this data which is shown here. Find F test value and test the significance of the multiple correlation coefficient R at &a..

A sales manager wishes to know whether there is a relation between the number of sales persons and sales per day. Find correlation coefficient and test the significance of the correlation coefficient of the following data at ∝ = 0.01. No .of sa..

The speed traveled and fuel consumed by the new model of a car manufactured by a company is listed here. Speed (kmph) 30 40 50 60 70 80 90 100 110 120 Fuel (litres/100 kms) 10 8 7 6 6.2 7 7.6 8.3 9 10 Calculate the correlation coefficient between the speed and the fuel..

Choose the direction of the shown linear correlation. => Weak positive or Strong positive or Strong negative..