Here is a quote from an NPR news article: “On average, working-age adults were eating about 78 fewer calories per day in 2010, compared with five years earlier. The new report is based on data from the National Health and Nutrition Examination Survey, which collects details on eating habits and other health-related information from a nationally representative sample of about 10,000 people in the U.S.” Which of the following is TRUE about the numerical value 78?
A. It is an anecdote.
B. It is a parameter.
C. It is a simulation.
D. It is a statistic.
Answer:
D. It is a statistic.
Explanation:
Statistics describe a sample. A parameter describes an entire population. The number 78 is based on a sample of 10,000 people, so is a statistic.
Read the statements and determine the correct answer for each blank.
microorganisms that cause diseases are known as ____
. They thrive best between the temperatures of ____
°F and_______ °F. Because _____________temperatures are usually around 70°F, it helps the growth of spoilage-causing bacteria.
A)
Answer:
pathogens, 41°, 135°, room temperature
Microorganisms that cause diseases are known as pathogens. They thrive best between the temperatures of 41°F and 135 °F. Because room temperatures are usually around 70°F, it helps the growth of spoilage-causing bacteria.
Explanation:
Most microbes are belong to four main groups of bacteria, virus, protozoa and fungi. ''Disease-causing microbes'' can also be called as ''pathogens'', that type of microbes or germs are mostly responsible for the cause of infectious diseases.
Pathogens grow best at temperatures from 41 ° to 135 °F. They bloom at temperatures from 70 to 104 ° F. Almost all food-borne pathogens are ''aerobic'' and requires increase in oxygen. Most bacteria cannot live at temperatures which is up to 120°F, and if you raise the temperature, you can kill most of them.
Correlation tells us that two traits or behaviors are related to one another, but it does not prove _______
A.) that your control group has been randomly selected
B.) that one trait or behavior caused the other
C.) that your study was replicated
D.) that your results can now be generalized
Answer:
B; that one trait of behavior caused the other
Explanation:
If we look at this from a statistical perspective, we know that correlation does not necessarily indicate causation. Although certain behaviors may be related with each other, it does not mean that those same traits were the cause to the behaviors of another trait. To give an example, both crime and the sales of ice cream increase during the summer every year, but does ice cream cause crime or vice versa? In fact, the answer is neither. In fact, crime during the summer is attributed to the fact that families tend to take more vacations during the summer. Although they were related, there was no evidence to prove that one caused the other (causation). Do not confuse correlation with causation, it just indicates a sort of relationship, but not a reason for why it is (correlation doesn't prove causation).