Answer:
Explanation:
cv= standard deviation/ mean
40/3
13.33
Answer;
A. The curl-up only tests the endurance of the abdominal muscles, not their strength
Explanation;
Curl up test measures abdominal strength and endurance. This test focuses predominantly on the main abdominal muscle, the rectus abdominus, and may not evaluate the core as a whole.
This test requires the athlete to complete as many curl-ups as possible at a rate of 20/minute. This test provides a means to monitor the effect of training on the athlete's physical development.
Answer:
C. the way a person, thing, or situation is noticed, understood, and responded to by our senses
Explanation:
Perception is the result of observation, which means that it is the way someone or something understands and interprets a situation through the senses. So it is the process of interpreting what we see, hear, smell, taste, feel to be able to understand what we are experiencing.
Why dont you try D if im wrong you can blame me for failing the test
Answer:
The correct option is;
D) Observational study
Explanation:
In an observational study, the researcher observes, notes and record the an occurrence of events which are due to the existence of a condition, test, risk factor, such that the experimental units are apparently out of the control of the researcher, or there are no researcher intervention in the study, due to either physical constraint or laid down ethics.
In the question, the researcher observes to determine the the number of people that run a light through pre recorded traffic video providing a physical restraint which makes it an observational study.
