Xr04-99* Osteoporosis is a condition in which bone density decreases, often resulting in broken bones.

Bone density usually peaks at age 30 and decreases thereafter. To understand more about the condition, researchers recruited a random sample of women aged 50 and older. Each woman’s bone density loss was recorded.

a. Compute the mean and median of these data.

b. Compute the standard deviation of the bone density losses.

c. Describe what you have learned from the statistics.