1. Unit 8. Day 10.

2. Example A: Beth tosses a coin 10 times and records her results
Example A: Beth tosses a coin 10 times and records her results. Here are the results from the 10 tosses:
Toss 1 2 3 4 5 6 7 8 9 10
Result H T H H T H
𝐹𝑖𝑛𝑖𝑠ℎ 𝑡ℎ𝑒 𝑡𝑎𝑏𝑙𝑒
Toss
Outcome
Total Number of Heads So Far
Relative Frequency of Heads So Far (to the nearest hundredth)
Total Number of Tails So Far
Relative Frequency of Tails So Far (to the nearest hundredth) 1 2 3 4 5 6 7 8 9 10 1 1 1 1 = 1 = 2 2 2 2 = 1 = 3 2 3 1 2 =
0.67 1 =
0.33 4 3 4 1 3 =
0.75 1 =
0.25

3. Toss
Outcome
Total Number of Heads So Far
Relative Frequency of Heads So Far (to the nearest hundredth)
Total Number of Tails So Far
Relative Frequency of Tails So Far (to the nearest hundredth) 1 H
1 1 =1
0 1 =0 2
2 2 =1
0 2 =0 3 T
2 3 =0.67
1 3 =0.33 4
3 4 =0.75   1
1 4 =0.25  5 H  6 7  T 8 9 10  H 5 4 5 4 1 1 =
0.80 =
0.20 6 6 5 1 5 = 1
0.83 =
0.17 7 7 5 5 2 2 =
0.71 =
0.29 8 8 5 5 =
0.63 3 3 =
0.37 9 9 5 5 4 4 =
0.56 =
0.44 10 10 6 5 =
0.60 4 4 =
0.40

4. Toss
Outcome
Total Number of Heads So Far
Relative Frequency of Heads So Far (to the nearest hundredth)
Total Number of Tails So Far
Relative Frequency of Tails So Far (to the nearest hundredth) 𝟏 H
𝟏 𝟏 =𝟏 𝟎
𝟎 𝟏 =𝟎 𝟐
𝟐 𝟐 =𝟏
𝟎 𝟐 =𝟎 𝟑 T
𝟐 𝟑 ≈𝟎.𝟔𝟕
𝟏 𝟑 ≈𝟎.𝟑𝟑 𝟒
𝟑 𝟒 =𝟎.𝟕𝟓
𝟏 𝟒 =𝟎.𝟐𝟓 𝟓
𝟒 𝟓 =𝟎.𝟖𝟎
𝟏 𝟓 =𝟎.𝟐𝟎 𝟔
𝟓 𝟔 ≈𝟎.𝟖𝟑
𝟏 𝟔 ≈𝟎.𝟏𝟕 𝟕
𝟓 𝟕 ≈𝟎.𝟕𝟏
𝟐 𝟕 ≈𝟎.𝟐𝟗 𝟖
𝟓 𝟖 ≈𝟎.𝟔𝟑
𝟑 𝟖 ≈𝟎.𝟑𝟖 𝟗
𝟓 𝟗 ≈𝟎.𝟓𝟔
𝟒 𝟗 ≈𝟎.𝟒𝟒 𝟏𝟎
𝟔 𝟏𝟎 =𝟎.𝟔𝟎
𝟒 𝟏𝟎 =𝟎.𝟒𝟎 1
0.67
0.33 + 1
0.83
0.17 + 1
0.63
0.38 + 1
0.60
0.40 +

5. Total Number of Heads So Far
Toss
Outcome
Total Number of Heads So Far
Relative Frequency of Heads So Far (to the nearest hundredth)
Total Number of Tails So Far
Relative Frequency of Tails So Far (to the nearest hundredth) 𝟏 H
𝟏 𝟏 =𝟏 𝟎
𝟎 𝟏 =𝟎 𝟐
𝟐 𝟐 =𝟏
𝟎 𝟐 =𝟎 𝟑 T
𝟐 𝟑 ≈𝟎.𝟔𝟕
𝟏 𝟑 ≈𝟎.𝟑𝟑 𝟒
𝟑 𝟒 =𝟎.𝟕𝟓
𝟏 𝟒 =𝟎.𝟐𝟓 𝟓
𝟒 𝟓 =𝟎.𝟖𝟎
𝟏 𝟓 =𝟎.𝟐𝟎 𝟔
𝟓 𝟔 ≈𝟎.𝟖𝟑
𝟏 𝟔 ≈𝟎.𝟏𝟕 𝟕
𝟓 𝟕 ≈𝟎.𝟕𝟏
𝟐 𝟕 ≈𝟎.𝟐𝟗 𝟖
𝟓 𝟖 ≈𝟎.𝟔𝟑
𝟑 𝟖 ≈𝟎.𝟑𝟖 𝟗
𝟓 𝟗 ≈𝟎.𝟓𝟔
𝟒 𝟗 ≈𝟎.𝟒𝟒 𝟏𝟎
𝟔 𝟏𝟎 =𝟎.𝟔𝟎
𝟒 𝟏𝟎 =𝟎.𝟒𝟎

6. Relative Frequency of Heads So Far (to the nearest hundredth)
Toss
Relative Frequency of Heads So Far (to the nearest hundredth) 𝟏
𝟏 𝟏 =𝟏 𝟐
𝟐 𝟐 =𝟏 𝟑
𝟐 𝟑 ≈𝟎.𝟔𝟕 𝟒
𝟑 𝟒 =𝟎.𝟕𝟓 𝟓
𝟒 𝟓 =𝟎.𝟖𝟎 𝟔
𝟓 𝟔 ≈𝟎.𝟖𝟑 𝟕
𝟓 𝟕 ≈𝟎.𝟕𝟏 𝟖
𝟓 𝟖 ≈𝟎.𝟔𝟑 𝟗
𝟓 𝟗 ≈𝟎.𝟓𝟔 𝟏𝟎
𝟔 𝟏𝟎 =𝟎.𝟔𝟎

7. Example A: Beth continued tossing the coin and recording the results for a total of 40 tosses. Here are the results of the next 30 tosses:
Toss 11 12 13 14 15 16 17 18 19 20
Result T H
Toss 21 22 23 24 25 26 27 28 29 30
Result H T
Toss 31 32 33 34 35 36 37 38 39 40
Result H T

8. Toss 1 2 3 4 5 6 7 8 9 10
Result H T
Toss 11 12 13 14 15 16 17 18 19 20
Result T H
Toss 21 22 23 24 25 26 27 28 29 30
Result H T
Toss 31 32 33 34 35 36 37 38 39 40
Result H T
Number of Tosses
Total Number of Heads So Far
Relative Frequency of Heads So Far (to the nearest hundredth) 1 5 10 15 20 25 30 35 40
1 1 1 1 =
4 5 4 =
0.80
6 10 6
0.60 =

9. Toss 1 2 3 4 5 6 7 8 9 10
Result H T
Toss 11 12 13 14 15 16 17 18 19 20
Result T H
Toss 21 22 23 24 25 26 27 28 29 30
Result H T
Toss 31 32 33 34 35 36 37 38 39 40
Result H T
Number of Tosses
Total Number of Heads So Far
Relative Frequency of Heads So Far (to the nearest hundredth) 1 5 4
0.80 10 6
0.60 15 20 25 30 35 40
8 15 8 =
0.53
11 20 11 =
0.55
13 25 13 =
14 30
0.52 14 =
0.47
17 35 17
19 40 =
0.49 19 =
0.48

10. 𝑡ℎ𝑒𝑜𝑟𝑒𝑡𝑖𝑐𝑎𝑙
0.50
0.48
𝑒𝑥𝑝𝑒𝑟𝑖𝑚𝑒𝑛𝑡𝑎𝑙

11. Q: If you tossed the coin 100 times, what do you think the relative frequency of heads would be? Explain your answer.
Q: If you tossed the coin 101 times, what do you think the relative frequency of heads would be? Explain your answer.