Recent research suggests that depression significantly increases the risk of developing dementia later in life (BBC News, July 6, 2010). In a study involving 949 elderly persons, it was reported that 22% of those who had depression went on to develop dementia, compared to only 17% of those who did not have depression. a. Choose the relevant population and the sample. (You may select more than one answer. Bold the answer(s) that are correct.)1. The sample consists of all elderly people.2. The sample consists of 949 elderly people.3. The population is all younger and elderly people.4. The population is all elderly people. b. Do the numbers 22% and 17% represent the population parameters or the sample statistics? Bold the answer that is correct. Population parametersSample Statistics

2. The sample consists of 949 elderly people

4. The population is all elderly people

B. The numbers 22% and 17% represents the sample statistics

Step-by-step explanation:

The study was based on a recent research that suggest that depression significantly increases risk of dementia later in life, so for every result gotten from this study, it is tied to only the samples chosen for the aim of the study which are the 949 elderly people.

if your home gets struck by lightning the plan you should create is calling 911 leaving the home wait for athoritys to show up pay hella money for them to put out fire

step-by-step explanation:

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral