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Li 1 2 3 4 5 Yi 4 5 5 11 13 a. Which of the following scatter diagrams accurately represents the data? --05. 05 5 3 -2,5-33,55 0 , 5 1 , 5 2 ,5.. .3,5 4 4,5 5,5 - Select your answer - b. What does the scatter diagram indicate about the relationship b

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Answer #1

a. Y Values X Values

Hence correct answer is 9,5---- 9,5---ཐད༈ 2, 533, 54,4,5,55,5-

b. As there is increasing trend so there is positive correlation between x and y

c. Y-Dependent X-Independent

d. X-My (X- M,) (K - M,)[Y - M,) 7.2 O O 2.5 UWNNW - O 3.4 5 16.8 SS: 16 SP: 24

Sum of X = 15
Sum of Y = 38
Mean X = 3
Mean Y = 7.6
Sum of squares (SSX) = 10
Sum of products (SP) = 24

Regression Equation = ŷ = b1X + b0

b1 = SP/SSX = 24/10 = 2.4

b0= MY - bMX = 7.6 - (2.4*3) = 0.4

ŷ = 2.4X + 0.4

e. For x=4, ŷ = (2.4*4) + 0.4=10

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