Loading [MathJax]/jax/output/CommonHTML/jax.js

StatTutor Lesson - Measuring center: the mean

true
Stat Tutor
true
true
You have completed 0 question sequences out of 3.
Measuring center-the mean
Video Player is loading.
Current Time 0:00
Duration 0:00
Loaded: 0%
Stream Type LIVE
Remaining Time 0:00
 
1x
    • Chapters
    • descriptions off, selected

      Questions 1-2

      54

      Question 1.

      What does "Σ" represent?

      A.
      B.
      C.
      D.

      Incorrect. Mathematically, "Σ" represents summation.
      Correct. Mathematically, "Σ" represents summation.
      Incorrect. Try again.
      2

      Questions 3-4

      133

      Question 3.

      What does the symbol "¯x" represent?

      A.
      B.
      C.

      Incorrect. The symbol "¯x" represents the mean of a sample of data.
      Correct. The symbol "¯x" represents the mean of a sample of data.
      Incorrect. Try again.
      2

      Applet

      161

      Question 5

      161

      Question 5.

      Graphically, what does the mean represent?

      A.
      B.
      C.

      Incorrect. The mean tells us where the data tend to "balance."
      Correct. The mean tells us where the data tend to "balance."
      Incorrect. Try again.
      2