I am going to investigate the number of 3's I expect to get when I roll 5 dice.
1
I am going to roll the 5 dice 50 times. Each time I will count how many of the dice are a 3. I can get
0 – 5 3's.
2
On average I think I will get less than one 3 each turn because there are five dice and there is a 1
in 6 chance of getting a 3.
Number of 3’s
0
1
2
3
4
5
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Frequency
15
21
11
2
1
0
Probability
0.30
0.42
0.22
0.04
0.02
0.00
3
4
The most common result I got was one 3 and this happened 21 times which is 0.42.
The shape of the graph is skewed with high numbers at the beginning and then low numbers at the
end. Most of the time there will be zero or one 3. There were 14 times, which is a probability of
0.28, when I didn't get zero or one 3.
6
5