A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Once all three lists are generated, add them to create the totals of the 200 trials.
- Create a discrete random variable relative frequency histogram for this data. Clearly label the axes and scale.
- Calculate the
mean and standard deviation for the roll totals:
μ= σ=
Use these to define a normal
- Compare the probabilities of the experimental discrete probability distribution and the
normal curve distribution for several cases listed on the table. Complete the table.
Probability | Relative Frequency Histogram | Normal Curve |
P(9.5≤x≤10.5) | ||
P(x≤3) | ||
P(x≥15) | ||
P(8≤x≤10) |
- Write a brief paragraph comparing the results of the table above. Discuss any similarities or differences in these results.
- There are 216 possible outcomes for the roll of three dice. The theoretical probabilities for the outcomes of the roll of three six-sided dice are:
Roll | Probability |
3 | 1/216 |
4 | 3/216 |
5 | 5/216 |
6 | 10/216 |
7 | 15/216 |
8 | 21/216 |
9 | 25/216 |
10 | 27/216 |
11 | 27/216 |
12 | 25/216 |
13 | 21/216 |
14 | 15/216 |
15 | 10/216 |
16 | 5/216 |
17 | 3/216 |
18 | 1/216 |
Calculate the theoretical probabilities of the indicated rolls and include them on the table below.
Probability | Relative Frequency Histogram | Normal Curve | Theoretical Probability |
P(9.5≤x≤10.5) | |||
P(x≤3) | |||
P(x≥15) | |||
P(8≤x≤10) |
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