The backhand stroke is more difficult than the forehand stroke because the racquey is swung in reverse fashion is true
Depending on the person, many different things could work like meditation, talking to friends, maybe having some tea, taking a shower, going for a drive, having some comfort food, and so many other things that allow you to release endorphins and relax your brain. : D
Based on the results of the study shown below, the epidemiologist has reason to worry because the incidence rate increased over four times the previous level as shown below:
- number of HIV cases = 440 persons
- new incidence rate = 2.25 per 1000 persons
<h3>What is prevalence and incidence rate?</h3>
Prevalence rate is the proportion of persons in a population who have a particular disease or attribute at a specified point in time or over a specified period of time.
- Prevalence rate = number of cases/total population × 100%
Incidence rate is the proportion of new cases of a condition observed within a given period of time.
- Incidence rate = number of new cases/population at risk × 1000
- population at risk = total population - previous cases
The number of people who had HIV in January 2012 is calculated as follows:
- number of HIV cases = prevalence rate × total population
number of HIV cases = 2.2% × 20000
number of HIV cases = 440 persons
Incidence rate between February 2012 and January 2013 is calculated as follows:
Incidence rate = 50/(20000 - 440) × 1000
Incidence rate = 2.25 per 1000 persons.
Based on the new incidence rate, the epidemiologist has reason to worry because the incidence rate has increased over four times the previous level.
Learn more about prevalence and incidence rate at: brainly.com/question/27108142
I used to play soccer and I was a referee. Slide tackles are done when a defending player, who does not have the ball, slides feet-first towards the person with the ball, attempting to knock the ball out of their possession. Slide tackles are illegal if done from behind the person it is done on.
