There are a total of Forty seven questions in the math section of the psat.
The scientists ensure that their results are reliable by repeating trials.
Given that scientists ensure that their results are reliable.
We are required to tell the way how scientists ensure that their results are reliable.
Reliability is basically defined as the probability that a product, system, or service will perform its intended function adequately for a specified period of time, or will operate in a defined environment without failure.
Reliability increases from repeating trials.It is like vaccines. Firstly the trials to be made on small number of persons, then the numbers increases and then ultimately the trials are done on the large number of persons.
Hence the scientists ensure that their results are reliable by repeating trials.
Learn more about reliability at brainly.com/question/1265793
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Antidiuretic hormone, the posterior lobe produces two hormones, vasopressin and oxytocin
Answer: D. 1 and 3 only
Explanation: the median is 50, the mode is 50, and the average(mean) is 56.875, therefore only the 1 and 3 are true.