An environmental scientist obtains a sample of water from a pond that contains a certain type of
Question:
An environmental scientist obtains a sample of water from a pond that contains a certain type of bacteria at a concentration of 5 per milliliter.
a. What is the probability that there will be exactly 12 bacteria in a 3-milliliter sample of water?
b. Find the mean number of bacteria in a 3-milliliter sample.
c. Find the standard deviation of the number of bacteria in a 3-milliliter sample.
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Rustia Melrod
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The Common Core standards are a useful yardstick for measuring how well students are doing. My students consistently met or exceeded the Common Core standards for science. I believe in working with each student's individual learning styles to help them understand the material. If students were struggling with a concept, I would figure out a different way to teach or apply that concept. I was voted Teacher of the Year six times in my career. I also won an award for Innovative Teaching Style at the 2011 National Teaching Conference.
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