Midterm Review 24-25

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What is the average of a set of numbers?

Back

The average (or mean) is calculated by adding all the numbers together and dividing by the total count of numbers. For example, for the scores 87, 89, 68, 99, 75, 100, and 90, the average is (87 + 89 + 68 + 99 + 75 + 100 + 90) / 7 = 86.9.

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What is the product of two numbers?

Back

The product is the result of multiplying two numbers together. For example, the product of -2 and 7 is -14.

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How do you calculate the probability of an event?

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Probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes. For example, the probability of rolling a number less than 2 on a number cube (1-6) is 1/6.

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What does it mean to evaluate an expression?

Back

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What is the result of subtracting two negative numbers?

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Subtracting a negative number is the same as adding its positive counterpart. For example, (-4) - (-6) = -4 + 6 = 2.

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What is the formula for calculating the average?

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The formula for calculating the average is: Average = (Sum of all values) / (Number of values).

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What is a number cube?

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A number cube is a six-sided die with numbers 1 through 6 on its faces, used in probability and games.

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What is the significance of rounding numbers?

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Rounding numbers simplifies them to make calculations easier and results clearer. For example, rounding 86.85 to the nearest tenths place gives 86.9.

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What is the difference between positive and negative numbers?

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Positive numbers are greater than zero, while negative numbers are less than zero. They are used to represent values in different contexts, such as temperature or debt.

Front

What is the square root of a number?

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