Math Periodic Test

Match the following real-life situations with their corresponding positive or negative numbers. Which pairing is correct?

• Climbing 800 meters: −800meters

• Spending $75 on groceries: −75 dollars

• A temperature increase of 12°C: −12°C

• A decrease in sea level by 5 m: +5 meters

What is the integer located 4 units to the left of 2?

• 4

• 6

• -2

• -4

What happens to the position of an integer as it becomes smaller?

• It moves closer to 0

• It moves farther to the left

• It moves farther to the right

• It stays in the same position

Which of the following lists integers in ascending order?

• -10, -7, -5, 0

• -7, -5, -10, 0

• 0, -5, -7, -10

• -5, -10, 0, -7

Find the product of (−7) × 4.

• 28

• -28

• 11

• -11

What is (−8) ÷ 4?

• 2

• -2

• 12

• -12

Simplify 0 × (−5).

• 5

• -5

• -1

• 0

Which of the following is an example of qualitative data?

• The number of students in a class

• The height of basketball players

• The colors of cars in a parking lot

• The daily sales of a bakery

What is the key characteristic of simple random sampling?

• Every subgroup in the population has an equal chance of being selected

• Every nth individual in the population is selected

• Every individual in the population has an equal chance of being selected

• Individuals are selected based on their availability or convenience

How would you justify using stratified sampling in a research study?

• To ensure every individual has an equal chance of being selected

• To guarantee that subgroups within a population are proportionally represented

• To make the process faster and less costly

• To simplify the data analysis process