IC: Ch. 10.4HW: Paper Cup Experiment

Materials

Write the IC and HW in your planner.

Thursday, 4/11/19

•Pencil & grading pen•Marker & slate•HW due (blood types)

Blood type of Patients Admitted to the ER Survey

April 12, 2016

18

2

8

224. The hospital would

like to have enough

blood in the blood bank

to have 80 bags in case

of a mass disaster. How

many bags of each

blood type should they

have?

Blood type of Patients Admitted to

the ER Survey

April 12, 2016

18

2

8

22

5. According to the ER bar graph, what was the probability of having

blood type B?

6. How does the ER bar graph compare to the national probability

based on the circle graph?

7. Compare the national probability of having blood type AB or B to the

ER survey probability.

National Blood Type Percentages

O = 45%

AB = 5%

B = 10%

A = 40%

Objective: TSWBAT find the probability of compound events.

Ch. 10.4

Ex. 1) Using the spinner below, what is the probability of either spinning an A or C and flipping tails on a coin?

1st Event 2nd Event

2

6

A or C

1

2=

1

6

Tails

2

12x

0.167 17%

Ex. 2) If a 6-sided number cube is tossed three times, what is the probability that it will land on an odd number all three times?

1st Toss 2nd Toss 3rd Toss

3

6

Odd #

3

6

x =1

8

Odd # Odd #

x

3

6

1

2

1

2

1

2

0.125

12.5%

Ex. 3) Find the probability of drawing a red marble from a bag of 6 red and 4 blue marbles, keep it, and then drawing a red marble again.

1st Pick 2nd Pick

10

6

red

5

9=

1

3

red

30

90x

0.333 33%