Infer why a circulatory system disorder might be harmful to other body systems.

The population of a country has a relative growth rate of 3% per year. The government is trying to reduce the growth rate to 2%. The population in 2011 was approximately 110 million. Find the projected population for the year 2036 for the following conditions. The relative growth rate remains at 3% per year.

How was human activity affected coral reefs?

Identify the sampling method (simple random sampling, systematic sampling, convenience sampling, or stratified sampling) in the following studies.

A computer randomly selects $400$ names from a list of all registered voters. Those selected are surveyed to predict who will win the election for mayor.

Discuss the worldwide effects of these diseases on human health.

Grandiose Growth has a dividend growth rate of 20%. The discount rate is 10%. The end-of-year will be $2 per share.

a. What is the present value of the dividend to be paid in year 1? year 2? Year 3? b. Could anyone rationally expect this growth rate to continue indefinitely?

2 + 3i is a solution of a quadratic equation with real coefficients. Find the other solution.

Multigenerational families can be classified as having two adult generations such as parents living with adult children, "skip" generation families, such as grandparents living with grandchildren, and three or more generations living in the household. Pew Research surveyed multigenerational households. This table is based on their reported results.

b) What is the chance that a randomly selected multigenerational family is White, given that it is a "skip" generation family?

New studies by Federal Highway Administration traffic engineers suggest that speed limits on many thoroughfares are set arbitrarily and often are artificially low. According to traffic engineers, the ideal limit should be the "85th percentile speed." This means the speed at or below which 85 percent of the traffic moves. Assuming speeds are normally distributed, find the 85th percentile speed for roads with the following conditions. The mean speed is 52 mph with a standard deviation of 8 mph.

Each of the following sentences contains at least one error in capitalization. Cross out each incorrect word, and write it correctly in the space above.

Example 1. Studying the $\overset{\textit{\color{#c34632}{Cherokee }}}{\sout{\text{cherokee}}}$ in social studies class, we read about $\overset{\textit{\color{#c34632}{Chief}}}{\sout{\text{chief}}}$ Wilma Mankiller.

The spacecraft magellan was sent to gather information about venus.

In the spring of 2003, SARS (Severe Acute Respiratory Syndrome) spread rapidly in several Asian countries and Canada. Table $4.9$ gives the total number, $P$, of SARS cases reported in Hong Kong ${ }^{17}$ by day $t$, where $t=0$ is March 17, 2003.

(a) Find the average rate of change of $P$ for each interval in Table $4.9$.

Nitrogen productivity can be defined as the amount of dry matter produced per unit of nitrogen per unit of time. Experimental studies suggest that nitrogen productivity increases as a function of light intensity at a decelerating rate. Sketch a graph of nitrogen productivity as a function of light intensity.

For each study, on the basis of the information given, is it clearly a randomized experiment? If not, explain what additional information would make it clear that the study was a randomized experiment rather than an observational study. For each study, discuss whether or not matched pairs were used. If it is not clear, explain what additional information would make it clear. Discuss whether any of the studies would suffer from each of the following: the Hawthorne effect, interacting variables, ecological validity.

Let p and q represent the following simple statements: p: You are human. q: You have feathers. Write each compound statement in symbolic form. You’re human only if you do not have feathers.