Central Tendency Quiz KWJ March 2024

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. What is the mean score of the quiz grades?

(Round to one decimal place)

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. What is the median score of the quiz grades?

(Round to one decimal place)

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. What is the mode score of the quiz grades?

(Round to one decimal place if needed)

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. What is the range of the quiz grades?

(Round to one decimal place if needed)

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. What is the standard deviation of the quiz grades?

(Round to two decimal places if needed)

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. If he makes a 50 on the next quiz, what will be the impact on the mean?

• increase

• decrease

• stays the same

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. If he makes a 50 on the next quiz, what will be the impact on the median?

• increase

• decrease

• stays the same

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. If he makes a 50 on the next quiz, what will be the impact on the mode?

• increase

• decrease

• stays the same

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. If he makes a 50 on the next quiz, what will be the impact on the range?

• increase

• decrease

• stays the same

Terry has taken 9 quizzes this semester. The quiz scores are listed below.

83, 89, 68, 92, 90, 75, 81, 100, 75. If he makes a 50 on the next quiz, what will be the impact on the standard deviation?

• increase

• decrease

• stays the same