Welcome Back! Let’s Get to More Great Math!
New Unit: WHAT DO YOU EXPECT?
1) Learning Target: I will conduct an experiment and compare
the amount of variation in a small number of trials versus a
large number of trials.
2) HW: WDYE Inv. 1 Day 1: Complete pg.3 and
Correct with the EDpuzzle.
Warm Up:
1) Review your MSA Unit Test.
2) Complete the MSA Cover Sheet, including what
kinds of mistakes you made and whether you plan to
do a retake. (Retake available this THURSDAY, 3/2)
Probabilities
can help you make decisions.
If there is a 75% chance of rain,
you might decide to use an
umbrella.
Probabilities can also help you
to predict what will happen
over the long run.
If the Seahawks have made it to
the Super Bowl twice in the past
four years, what is the
probability that they will get
there again next year?
What Do You Expect?
Test your prediction:
1) Toss a coin up to 25 times.
2) Record your results in the table on p. 2 of WDYE Investigation 1.
3) Record the fraction and find the percept of heads BEFORE going
on to the next toss.
Answer A: As you add more data, what happens to the percent of
tosses that are heads?
Answer:
As more data is added, the percent of tosses
that are heads gets closer to 50% or ½.
B. Working with the class,
let’s record the results
of 10 tosses
from each groups.
1. What percent of the total
number of tosses for our
whole class is heads?
2. As our class adds more data,
what happens to the percent
of tosses that are heads?
As more data is added,
the percent of tosses
that are heads gets
closer to 50% or ½.
C. Based on what you found for June, how many times do
you expect Kalvin to eat Cocoa Blast in July?
Explain your reasoning.
Kalvin should have Cocoa Blast
about ½ the time,
or about 15 of the 31 days in July.
(50% of the time)
D. Kalvin’s mother tells him the chance of a coin showing
heads when he tosses it is ½. Does this mean that every
time he tosses a coin twice, he will get one head and one
tail? Explain.
New Unit: WHAT DO YOU EXPECT?
Did I reach my Learning Target? I will conduct an experiment
and compare the amount of variation in
a small number of trials versus a large number of trials.
Homework: WDYE Inv. 1 Day 1: Complete p.3 and
Correct with the EDpuzzle.