Distribution Shape Mean Median Deviation

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last between 12 and 15 days?

• 68%

• 34%

• 16%

• 2.5%

The center of the curve represents what value of a data set?

• μ = population mean

• δ = population standard deviation

• Σ= sum of the data values

• Ζ = z or standard scores

What shape is a normal distribution curve?

• Half curve

• Round curve

• Bell curve

• Square curve

A normal curve has a ____ shape.

• skewed left

• skewed right

• bimodal

• symmetrical

In a normal curve,

• the mean is greater than the median

• the mean is less than the median

• the mean is equal to the median

• who knows

Which measure goes in the center of the Normal Curve?

• standard deviation

• mean

• median

• mode

What's the standard deviation?

• 150

• 60

• 240

• 30

Which is NOT a characteristic of normal distribution?

• Symmetrical

• Bell-shaped

• Random

• Continuous

The normal curve is symmetrical about the mean.

• True

• False

What goes in the yellow box?

• mean

• median

• mode

• standard deviation