F3 math(20點)Math 高手請進

[匿名]

2013-05-22 9:53 pm

1.Throw a dice 6 times. Record the results in the following table.
1 2 3 4 5 6
Tally
Cumulative Frequency

2.Throw a dice 60 times. Record the results in the following table.( leave the answers in fractions)
1 2 3 4 5 6
Tally
Cumulative Frequency
Probability of getting the corresponding number

According to the result, are the theoretical probability and the experimental probability of getting a '2 equal? Yes/No

As the number of throws increases, does the experimental probability get closer to the theoretical probability? Yes/No

更新1:

可唔可以教我做埋第二題既Probability of getting the corresponding number？

回答 (1)

風平浪靜海闊天空

2013-05-22 10:57 pm

✔ 最佳答案

1.
1:0
2:1
3:1
4:0
5:1
6:3

2.
1:9
2:9
3:7
4:10
5:12
6:13

3.Yes.
4.Yes.

2013-05-22 14:58:26 補充：
If you don't know any programming language and do not want to throw a real dice, you can google "random number generator" and find a suitable website.

2013-05-22 23:17:39 補充：
2. Probability of getting the corresponding number:
1:9/60=0.15
2:9/60=0.15
3:7/60~0.12
4:10/60~0.17
5:12/60=0.2
6:13/60~0.22

參考: Math.random() in java and my programming skills :D

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