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3 cards from this section. Quick, good the night before a test.
What shape does the graph of a normal distribution form?
Think about how you would draw it.
True or False: The mean, median, and mode are always the same in a normal distribution.
Consider how data balances around the center.
What characterizes the normal distribution curve?
Visualize the curve when thinking about this.
True or False: The total area under the normal distribution curve is equal to 2.
Recall the basis of probability.
A company finds that the length of time its employees work each day is normally distributed with a mean of 8.5 hours and a standard deviation of 0.5 hours. What is the probability that a randomly selected employee works between 8 and 9 hours?
Remember to find the Z-scores first before referring to the Z-table.
Explain how you would use the normal distribution to model the heights of plants in a garden, describing the steps to determine if the plant heights follow a normal distribution.
Consider different characteristics of the plants and how you’d measure them.
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