The Battery Life of an IPod Has an Approximate Normal

question 29

Short Answer

The battery life of an iPod has an approximate normal distribution with a mean of 6 hours and a
standard deviation of 0.5 hours. What is the probability that a randomly chosen iPod will have a
battery life between 4.5 hours and 5 hours? Give your answer as a percentage.

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Definitions:

Blood Plasma

The liquid component of blood where cells are suspended, comprising water, salts, proteins, and various other substances.

Medullary Osmotic Gradient

A concentration gradient of solutes in the kidney's medulla that helps in the reabsorption of water from urine, contributing to the body's water balance.

Loop Of Henle

A section of the nephron in the kidney that is responsible for concentrating urine and conserving water.

Glomerular Filtration Membrane

A selective filtration barrier in the kidneys that separates blood plasma from the filtrate, leading to urine formation.