AlgII Stats Practice

Front

What is the formula to calculate the percentage of students who passed a test?

Back

Percentage of students who passed = (Number of students who passed / Total number of students) x 100

Tags

CCSS.6.EE.B.6

Front

If 82% of 400 students attempted a test, how many students is that?

Back

328 students attempted the test (0.82 x 400 = 328).

Tags

CCSS.6.RP.A.3C

Front

What is the margin of error in a survey?

Back

The margin of error is a statistic that expresses the amount of random sampling error in a survey's results.

Tags

CCSS.HSS.IC.B.4

Front

How do you calculate the original price of an item with a service fee included?

Back

Original Price = Final Price / (1 + Service Fee Rate).

Tags

CCSS.6.EE.B.7

Front

What is the median in a set of numbers?

Back

The median is the middle value when the numbers are arranged in order.

Tags

CCSS.6.SP.B.5C

Front

How do you find the percent decrease in price?

Back

Percent Decrease = ((Old Price - New Price) / Old Price) x 100.

Tags

CCSS.6.RP.A.3C

Front

If a number x > 3 is added to a list with a median of 3, what happens to the median?

Back

The median will be larger than 3.

Front

What does it mean if a survey result has a margin of error of 2%?

Back

It means the true value could be 2% higher or lower than the reported percentage.

Tags

CCSS.HSS.IC.B.4

Front

How do you determine the number of students who failed a test if you know the pass rate?

Back

Number of students who failed = Total students - Number of students who passed.

Tags

CCSS.6.EE.B.6

Front

What is the significance of a 4.15% service fee in pricing?

Back

It indicates that the final price includes an additional charge on top of the original price.

Tags

CCSS.8.EE.C.7B