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The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed,with a mean of 3.2 pounds and a standard deviation of 0.8 pound.If a sample of 25 fish yields a mean of 3.6 pounds,what is the Z-score for this observation?
Oxygen-Poor
Environments or situations where the concentration of oxygen is significantly lower than the atmospheric levels, often creating challenges for aerobic organisms.
Inferior Vena Cava
Vein that delivers oxygen-poor blood from the lower body to the heart.
Three-Chambered Heart
A type of heart structure found in some amphibians and reptiles, consisting of two atria and one ventricle, allowing for a degree of separation between oxygenated and deoxygenated blood.
Amphibian
Tetrapod with scaleless skin; it typically develops in water, then lives on land as a carnivore with lungs. For example, a frog or salamander.
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