Answer:
Option a
Explanation:
Random selection or random sampling from a given population is the most appropriate way, especially in experimental studies. This method is simple and accurate. According to the above-mentioned case, if the researcher selects students randomly for the experimental and control group, then each of them would have an equal chance of selection. Hence, the results would be generalized and not biased.
Answer:
y = 3x + 8 because the y-intercept is always adding if it's positive and and the slope always has the x in the back.
Answer:
The red cheeked salamander is negatively affected, the imitator is positively affected.
Answer:
Because fertilization in diploid gametes would double the number of chromosomes in the zygote. If chromosome numbers are disturbed the organism develops abnormalities or even die.
The writer should always refer (B) hypothesis