Transforming Data Statistics

What is the median?

• 62

• 58

• 66

• 60

What is the range of the set of data?

• 70

• 65

• 80

• 55

The sum of all the values in a data set divided by the number of data values. Also called the average.

• mean

• median

• mode

• range

What does "mode" mean?

• average

• middle

• repeats the most

• variation

Sally was so excited after collecting her data that she slipped and fell in the mud! She can no longer read her data but she knows the median is 35.4 inches with a range of 12 inches. Sally also realizes that she needs to add 1 inch to all her measurements because of a faulty ruler, then convert everything to feet. What would her median and range be after making these adjustments?

• Median = 3.033 feet
  Range = 1.083 feet

• Median = 3.033 feet
  Range = 1 foot

• Median = 2.95 feet
  Range = 1.083 feet

• Median = 2.95 feet
  Range = 1 foot

If 10 is added to every value in a set of data, what will happen to the value of the mean?

• it will increase by 10

• it will decrease by 10

• it will stay the same

• it will both increase and decrease

Another word for average is

• sample 

• mean

• data

• numerical data

The difference between the greatest and least values in the data set.

• range

• interquartile range

• standard deviation

• mean absolute deviation

Ms. Moss did a survey of her class about how many books they read over the summer. Using the dot plot, identify the correct statements.

• More of her students have read more than 4 books than the number of students who read less than 3 books.

• Ms. Moss surveyed 20 students.

• Half of the students have read more than 1 book.

• Most of the students have read at least 1 book.