The running heart rate of a girl as per linear equation will be 178.7 bpm.
Linear equation is an equation where the highest power of a variable is 1.
As per given data,
The average walking heart rate of eight girls is = (66 + 72 + 74 + 78 + 80 + 84 + 86 + 88)/ 8 = 78.5 bpm.
The average running heart rate of eight girls is = (128 + 136 + 134 + 138 + 142 + 144 + 14 8 + 152)/8 = 1122/8 = 140.25 bpm.
Therefore, for walking heart rate of x, the running heart rate will be (140.25/78.5)x = 1.787x.
Hence, the linear equation between walking heart rate and running heart rate is y = 1.787x.
Now, for walking heart rate of 100 bpm of a girl, the running heart rate will be = 1.787 × 100 bpm = 1787.7 bpm.
Learn more about linear equation here: https://brainly.com/question/2263981
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