CK-12-Basic Probability and Statistics Concepts - A Full Course

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 5. Measures of Central Tendency


Score 2 3 4 5 6 7 8
Number of Players 3 8 22 29 20 8 10

Use your TI calculator to find the median score for the players.


  1. A math teacher at a local high school begins every class with a warm-up quiz based on the work presented
    the previous day. Each test consists of 6 questions valued at 1 point for each correct answer. The results of
    Monday’s quiz for the 40 students in the class are shown below:


Mark 0 1 2 3 4 5 6
Number of Students 2 6 7 10 5 3 7
What is the median score for Monday’s quiz? Use your TI calculator to find the answer.


  1. In Canada, with the loonie and the toonie, you could have a lot of coins in your pocket. A number of high
    school students were asked how many coins they had in their pocket, and the results are shown in the following
    table:


Number of Coins 0 1 2 3 4 5 6 7
Number of Students 2 5 8 9 6 4 9 7
Use your TI calculator to find the median number of coins that a student had in his or her pocket.


  1. A group of 12 students participated in a local dirt bike race that required them to cover a 1-mile course in the
    fastest time possible. The times, in minutes, of the 12 participants are shown below:


3 .5 min 4.2 min 3.1 min 5.3 min 6.2 min 4.6 min
5 .1 min 6.7 min 5.4 min 4.4 min 3.9 min 5.0 min
What is the median time of the participants in the race? Use your TI calculator to find the answer.
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