Measures of Central Tendency and Distribution Shapes

How is the median calculated when there is an even number of entries?

• By taking the average of all entries

• By selecting the middle entry

• By taking the mean of the two middle entries

• By selecting the highest entry

What is the mean of the two middle entries 235 and 268?

• 250

• 251.5

• 252

• 253.5

Which of the following is NOT a step in finding the median?

• Ordering the data

• Counting the entries

• Finding the range

• Calculating the mean of middle entries

If the data set was 223, 235, 235, 268, 274, 290, what would be the median if the first entry was removed?

• 235

• 251.5

• 268

• 274

Which number is repeated in the data set?

• 223

• 235

• 268

• 290

Which number is the smallest in the data set?

• 223

• 235

• 268

• 274

What is the mode of the political party responses in the table?

• Democrat

• Republican

• Independent

• Other/don’t know

What is the frequency of people who identified as "Other/don’t know"?

• 46

• 34

• 39

• 5

How many more people identified as Democrat than Republican?

• 12

• 10

• 15

• 8

What is the difference in frequency between Independent and Other/don’t know?

• 34

• 39

• 5

• 35