Question

Vocabulary quiz scores for the 20 students in Mr. Harley’s class are shown in the table. Use this data to answer questions 4 and 5. VOCABULARY QUIZ SCORE SCORE FREQUENCY 40 X 50 X 60 XX 70 XXXX 80 XX 90 XXXX 100 XXXXXX 4. Calculate the mean and interpret its meaning in this context. 5. Calculate the mean absolute deviation and interpret its meaning in this context. 6. Identify and interpret the meaning of any outliers in the data set

Answer 1

The mean should be 80.5. This means the average number of test scores is 80.5. The mean absolute deviation should be 15.5. This means the average of the values are less than the mean by about 15.5.