Semester 1 Final

Front

What is relative error?

Back

Relative error is the difference between the estimated value and the true value, divided by the true value, often expressed as a percentage.

Front

How do you calculate relative error?

Back

Relative Error = |Estimated Value - True Value| / True Value.

Front

What is the average number of births per minute if 130 million babies are born each year?

Back

Approximately 250 births per minute.

Front

How do you find the absolute change in percentage scores?

Back

Absolute Change = New Value - Old Value.

Front

What is the formula to calculate gas usage based on miles per gallon and speed?

Back

Gas Usage = Speed / Miles per Gallon.

Front

How do you compare prices per ounce for different products?

Back

Calculate the price per ounce for each product and compare the values.

Front

What is the price per ounce for six 10-oz bottles costing $3.60?

Back

Price per ounce = $3.60 / (6 * 10) = $0.06 per ounce.

Front

What is the price per ounce for eight 8-oz bottles costing $4.00?

Back

Price per ounce = $4.00 / (8 * 8) = $0.0625 per ounce.

Front

What is the average speed if a motorcycle travels 65 miles in one hour?

Back

The average speed is 65 miles per hour.

Front

How do you convert annual birth rates to births per minute?

Back

Divide the annual birth rate by the number of minutes in a year (525,600 minutes).