What's My Score - 1-Variable Statistics; What's My Score? - 1-Variable Statistics - Texas Instruments TI-30X - IIS Scientific Calculator Teachers Manual

What's My Score? — 1-Variable Statistics
Overview
Students use the given test scores to find averages.
Introduction
Activity
Procedure
© 1999 T I I
EXAS NSTRUMENTS NCORPORATED
Ù
Math Concepts
• averages
³ 1. Press % t < to
2. Press v and enter your
3. Press $ and enter
4. Press $. Continue
5. When finished, press
TI-30X ÙS: A Guide for Teachers
Materials
• TI-30X ÙS
• pencil
• student activity
select mode.
1-VAR
first score.
X1 = 98
as
2
the frequency for 98.
FRQ = 2
entering your scores and
frequencies, pressing $
after each score and
frequency.
u " to select v, the
average. Write it down.
n v Sx sx ¹
92.6
14