The scientific method is a series of sequential steps used to build scientific knowledge. In the scientific method, the collection of data is a previous step before making conclusions from these data.
- The statement 'Collecting research data is the final step in the scientific method' is FALSE.
The steps of the scientific method include:
- to make one particular observation of some aspect of the natural world in order to formulate one question from such observation
- to propose a possible explanation (hypothesis) in order to explain this question
- to test the hypothesis by collecting experimental and/or observational data
- to examine the collected data in order to accept or reject the working hypothesis
- to make a conclusion from the results
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Natural gas in its native state is colorless and odorless. Mercaptan is the additive that is added to natural gas to make it easier to detect in case of a leak.
The standard deviation of the average age of a breed of dog is said to be 3.69.
<h3>What is the standard deviation about?</h3>
Note that we take:
- x = dog age has mean 19.5
- Unknown standard deviation.
Hence:
z = (x - mean) /SD is distributed N (0,1) - mean o standard deviation 1 (standard normal)
Since 20% of dogs are known to be older than 22.6 years:
So 22.6 years is said to be 80th percentile,
Since z matching to 80th percentile (using the standard normal table) s is <em>0.84.</em>
Then one need to plug z, x which is = 22.6
mean = 19.5 into the stated z equation:
Hence,
0.84 = (22.6 - 19.5)/SD
SD = (22.6 - 19.5)/0.84
= 3.69
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Answer:
i think its 10?
Explanation:
because 1/3 of 15 is 5 so 15-5=10
