Question

a pet store has 7 cats. here are their weights (in pounds). 7, 12, 15, 15, 10, 7, 15 send data to calculator find the mean weight of these cats. if necessary, round your answer to the nearest tenth. pounds

Explanation:

Step1: Sum the weights

To find the mean, first sum all the weights. The weights are 7, 12, 15, 15, 10, 7, 15. So we calculate \(7 + 12 + 15 + 15 + 10 + 7 + 15\). Let's add them step by step: \(7+12 = 19\), \(19+15 = 34\), \(34+15 = 49\), \(49+10 = 59\), \(59+7 = 66\), \(66+15 = 81\). So the sum is 81.

Step2: Divide by the number of cats

There are 7 cats. The mean is the sum divided by the number of data points, so we do \(\frac{81}{7}\). Calculating this, \(81\div7\approx11.6\) (rounded to the nearest tenth).

Answer:

11.6