Problem-solving portion:Question 2 conituned:  Because elderly people may have difficulty standing straight to have their heights measured, a study looked at predicting overall height from height to the knee. The data, in centimeters (cm), for five elderly men are listed in the table.r = correlation between x and y = 0.877 = mean of the values of x = 49.72 = mean of the values of y = 164.72sx = standard deviation of the values of x = 6.36sy = standard deviation of the values of y = 17.6Use the least‑squares regression equation to predict the height (y) when the knee height is 100 cm.  Does this value make any sense? Please justify.

A survey was designed to study how brook trout populations respond to various levels of urbanization. Urbanization had three levels: low, medium, and high impact. Historical habitats for brook trout were observed, with 200 habitats randomly selected within each level of urbanization, for a total of 600 habitats. Researchers marked each population as extirpated or present. The data are given in the following two-way table.   Extirpated Present Total Low impact 25 175 200 Medium impact 80 120 200 High impact 195 5 200 What percent of habitats subject to high levels of urbanization were found to be present?

Which of the following is a durable protein that makes which skin layer waterproof and resistant to bacteria and viruses?

Ability to grow in shade may help pine trees found in the dry forests of Arizona resist drought. To test this hypothesis, investigators planted pine seedlings in a greenhouse in full light, light reduced to 25% of normal, or light reduced to 5% of normal. At the end of the study, they dried the young trees and weighed them.What are the treatments in this study?

Overgrowth of scar tissue is a _________________.

Sabaceous glands produce __________________.

Which medical condition is more commonly known as a hive?

This histogram shows the yearly number of unprovoked attacks by alligators on people in Florida over a 33‑year period. What is the overall shape of the distribution?

What was Danielle Allen’s main takeaway from the story of Joseph’s descendants?

According to the Declaration as explained in the text, what did King George III do to lose his authority?