2. The following data were obtained in a study of the relationship between the weight and chest size of infants at birth. Chest size (cm) Weight ( kg) 2.75 29.5 2.15 26.3 4.41 32.2 5.42 36.4 3.20 27.1 4.22 27.6 2.31 28.3 4.30 30.3 3.71 28.7

2. The following data were obtained in a study of the relationship between the weight and chest size of infants at birth. Chest size (cm) Weight ( kg) 2.75 29.5 2.15 26.3 4.41 32.2 5.42 36.4 3.20 27.1 4.22 27.6 2.31 28.3 4.30 30.3 3.71 28.7

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 25PFA

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Question

calculate the correlation coefficient r.

2. The following data were obtained in a study of the relationship
between the weight and chest size of infants at birth.
Chest size (cm)
Weight ( kg)
2.75
29.5
2.15
26.3
4.41
32.2
5.42
36.4
3.20
27.1
4.22
27.6
2.31
28.3
4.30
30.3
3.71
28.7

Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

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