ADM 2024-25 Set 7 Summative

Front

What is the definition of the mean in statistics?

Back

The mean is the average of a set of numbers, calculated by dividing the sum of all values by the number of values.

Front

How do you calculate the median of a set of numbers?

Back

To find the median, arrange the numbers in ascending order and identify the middle number. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the relationship between the mean and median in a symmetric distribution?

Back

In a symmetric distribution, the mean and median are equal.

Front

If the average of 5 distinct scores is equal to the median, what can be inferred about the scores?

Back

The median score is also the average of the scores, indicating a balanced distribution around the median.

Front

What is the formula to find the sum of scores if the average is known?

Back

Sum = Average × Number of Scores.

Front

Given the mean of 4 numbers is 10, how do you find the total sum of those numbers?

Back

Total Sum = Mean × Number of Numbers = 10 × 4 = 40.

Front

If three numbers are 5, 9, and 12, how do you find the fourth number if the mean is 10?

Back

Let the fourth number be x. Then, (5 + 9 + 12 + x) / 4 = 10. Solving gives x = 14.

Front

What is the definition of a distinct score in statistics?

Back

Distinct scores are unique values in a data set, meaning no value is repeated.

Front

How do you determine the sum of scores that are not the median?

Back

Subtract the median score from the total sum of all scores.

Front

What does it mean if the average and median of a set of scores are the same?

Back

It indicates that the distribution of scores is likely symmetric.