Calculating Mean and Age Statistics

This video tutorial guides viewers through solving a practice SAT math question about calculating the mean age of graduating students. It explains the concept of mean as the average, demonstrates how to use multiplication to simplify the calculation, and verifies the result using a calculator. The final answer is confirmed as 17.1, corresponding to option B.

What is the main topic introduced in the video?

• Calculating the range of ages

• Calculating the mode age

• Calculating the mean age

• Calculating the median age

How do you find the mean age of a group of students?

• Multiply all ages together

• Subtract the youngest age from the oldest

• Add all ages and divide by the number of students

• Find the most common age

What is the first step in calculating the mean age using multiplication?

• Divide the total sum by the number of students

• Add all ages directly

• Subtract the smallest age from the largest

• Multiply the number of students by their respective ages

How many students were aged sixteen?

• Four

• Two

• Five

• Three

What is the product of five students aged seventeen?

• 85

• 65

• 95

• 75

What is the sum of the products of ages before dividing by ten?

• 174

• 173

• 172

• 171

What is the mean age calculated using the calculator?

• 18.2

• 16.5

• 19.3

• 17.1

What is the final result of the visual expression calculation?

• 17.1

• 17.0

• 16.9

• 17.2

Which option correctly represents the mean age of the students?

• A

• B

• C

• D