Frequency 10 0.030 0.025 8 0.020 0.015 4 0.010 2 0.005 0 40 60 0.000 80...

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Frequency 10 0.030 0.025 8 0.020 0.015 4 0.010 2 0.005 0 40 60 0.000 80 100 120 140 Score on exam (%) Probability Frequency 35 30 25 20 15 10 10 0.10 0.08 0.06 0.04 0.02 5 0 0.00 44 48 52 56 60 64 68 72 Body mass (kg) Probability Frequency 10 0.030 0.025 8 0.020 0.015 4 0.010 2 0.005 0 40 60 0.000 80 100 120 140 Score on exam (%) Probability Frequency 35 30 25 20 15 10 10 0.10 0.08 0.06 0.04 0.02 5 0 0.00 44 48 52 56 60 64 68 72 Body mass (kg) Probability