AlgII Stats Practice

Front

What is the formula to calculate percent decrease?

Back

Percent Decrease = ((Old Value - New Value) / Old Value) * 100

Front

If a vase was priced at $83.22 and is now $64, what is the percent decrease?

Back

23%

Front

How do you convert feet per second to miles per hour?

Back

Multiply by 0.681818 (or divide by 1.46667).

Front

If you run at 7.04 ft/second, what is your speed in miles/hour?

Back

4.8 mph

Front

What is standard deviation?

Back

Average distance that data points are from the mean.

Front

What does a low standard deviation indicate about a data set?

Back

Data points are close to the mean.

Front

What does a high standard deviation indicate about a data set?

Back

Data points are spread out from the mean.

Front

In a sample of 200 cars, 3 have a defect. How many defects are expected in 10,000 cars?

Back

150

Front

What is the formula for finding the average of a set of numbers?

Back

Average = (Sum of all values) / (Number of values)

Front

Back