Unit 2 Study Guide Part 2

Front

What is the median of a data set?

Back

The median is the middle value of a data set when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you find the median of the data set: 7.3, 2.9, 1.5, 0.6, 3.8?

Back

First, arrange the numbers in order: 0.6, 1.5, 2.9, 3.8, 7.3. The median is the middle number, which is 2.9.

Front

What is the least common multiple (LCM)?

Back

The least common multiple of two or more numbers is the smallest multiple that is exactly divisible by each of the numbers.

Front

What is the LCM of 6 and 8?

Back

The LCM of 6 and 8 is 24.

Front

How do you find the mean of a data set?

Back

To find the mean, add all the numbers together and then divide by the total number of values.

Front

Find the mean of the data set: 10, 15, 20, 25, 30.

Back

Mean = (10 + 15 + 20 + 25 + 30) / 5 = 15.

Front

What is the least common multiple (LCM) of 15 and 2?

Back

The LCM of 15 and 2 is 30.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

What is the GCF of 4 and 6?

Back

The GCF of 4 and 6 is 2.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor they have in common.