WARM UP
NAME: _______ANSWERS_____
1. You are at the county fair and decide to try a game of ring toss. You get 5 rings to throw. You
win a prize when you throw a ring onto a bottle; however you always get to throw all 5 rings.
You know that you have a probability at any time of throwing the ring on the bottle of 43%.
a. Write instructions for a simulation of the ring toss game. (5)





Prize = 43%
No prize = 57%
Use the TRD.
Prize = 01 – 43
One trial = throwing 5 rings
Perform 10 trials
Response variable = # of prizes
No prize = 44 – 00
b. Using the following table of random digits clearly mark the outcomes of 10 trials. (5)
76|76|81|60|66|94|10|99|06|85|92|05|88|17|44|99|13|33|63|54| 34|29|29|00|92|92|82|7
2|17|03|64|61|60|34|31|47|61|03|19|68|61|59|33|62|59|70|60|05|34|91|95542
02947
01749
98343
29384
01834
01746
06876
98173
02854
82374
91837
12347
91837
13749
18725
54768
27364
27346
18763
02498
29873
04895
04539
# of hits
frequency
0
|
1
2
|
|||| ||
3
|
4
5
c. What is the average number of wins? (2)
average = 1.8 wins
d. What is the probability that you get more than 3 wins? (2)
0/10 = 0%
e. What is the probability that you get 0 wins? (2)
1/10 = 10%
f. What is the probability that you get 2 wins or less? (2)
9/10 = 90%
2. Assume that it is known nationally that 38% of all high-schoolers participate in school sports.
How many students would you have to talk to until you encountered on who participated in
sports?
a. Write instructions for 1simulation of this experiment.





Participate in sports = 38%
Not participate = 62%
Use TRD.
Participate = 01 – 38
Not = 39 – 00
One trial = until we find someone who plays sports
Perform 8 trials
Response Variable = # of students spoken to.
b. Perform 8 trials of this experiment, using the table below, and record your results on the
chart.
2170|3646|16 0343|1 476|10 3196|86|1593 36259 70600 53491 95542 02947
91837 13749 18725 54768 27364 27346 18763 02498 29873 04895 04539
76768 16066 94109 90685 92058 81744 99133 36354 34292 90092
92827
01749 98343 29384 01834 01746 06876 98173 02854 82374 91837 12347
# students
frequency
1
|||
2
||||
3
|
4
5
6
7
8
9
10+
c. What is the average number of kids you would need to talk to?
1.75 kids