Question

20 newborn babies at a hospital had these weights and pounds 7.0, 9.5, 6.8, 7.1,. 8.6, 5.9, 6.2, 7.7, 6.3, 8.0, 6.1. , 6.9, 7.0, 7.4, 7.4, 7.5 and 8.1 what. Is the mean of these weights? Make a history and make a stin and leaf plot

Answer 1

To find the mean weight of the newborns, add all the weights together and divide by 20, resulting in approximately 7.085 pounds. A stem-and-leaf plot organizes these weights to show their distribution.

Step-by-step explanation:

The question involves calculating the mean weight of 20 newborn babies with given weights. To find the mean, you sum all the weights and divide by the number of babies. The weights provided sum to 141.7 pounds when the typos are corrected and the actual numbers added. Dividing this by the total number of babies, which is 20, we get a mean weight of approximately 7.085 pounds.

To make a stem-and-leaf plot, we divide the weights into two parts: the 'stem', which consists of all digits except the last one, and the 'leaf', which is typically the last digit of each number. Here is an example stem-and-leaf plot for the weights:

5 | 9
6 | 1237889
7 | 001144577
8 | 06
9 | 5

The stem represents the first part of the weight, and the leaf represents the last digit. You can easily see the distribution of weights from the plot, which in this example shows a concentration of weights in the 6 to 7 pound range.