Question
A study was conducted to explore the associations between IQ scores, brain volume and body weight. All three variables are known to be approximately normally
A study was conducted to explore the associations between IQ scores, brain volume and body weight. All three variables are known to be approximately normally distributed in most adult populations. Data were collected on a random selection of 11 senior university students attending McMaster University. The data are provided in the table below. Use these data to answer the questions below the table. Student ID IQ Score Brain Volume (cm3) Body Weight (kg) 1 87 1027 58.514 2 101 1281 63.958 3 103 1051 133.358 4 96 1079 107.503 5 101 1173 61.236 6 96 1079 61.236 7 93 1067 83.916 8 88 1104 79.38 9 97 1029 81.648 10 114 1100 88.452 11 113 1204 79.38 a) Construct the appropriate plot to show the relationship between IQ score and brain volume. Describe the relationship between the two variables (e.g., direction, linearity, strength)
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