WDYE? 4.2: Making Purple
Learning Target:
I will use an area model to represent a probability situation.
HW: Complete the WDYE Investigation 3.1 p. 16 and
Correct with the Zaption video: WDYE 4.2
Warm Up #1:
A grocery store sells 3 different sizes of milk and
4 different brands. How many different ways can
you buy milk? (short cut?)
Brand Size
4 x 3 =
Warm Up #2
Compound Events
• An event that is made up of two or more events
– Example: tossing a coin and rolling a die
• Two or more separate events that you
put together to form one compound event.
p. 15
Conduct the experiment 20 times (spin once on each spinner)
Record results:
Experimental Probability:
RR
BG
BR
P(Purple) = ___ / 20
Theoretical Probability:
Spinner B
Spinner A
R
B
G
R
RR
RB
RG
R
RR
RB
RG
R
RR
RB
RG
B
BR
BB
BG
G
GR
GB
GG
Y
YR
YB
YG
P (purple) = 4/18 = 2/9
8 winners x $6 = $48 in prize money
Profit = Revenue – Expense
Profit =
$72
$48 = $24 in profit
Exit Ticket 4.2!
WDYE? 4.2: Making Purple
Did I reach my Learning Target by making a lot of purple?
I will use an area model to represent a probability situation.
HW: Complete the WDYE Investigation 4.2 p. 16 and
Correct with the Zaption video: WDYE 4.2