# statistics

*label*Mathematics

*timer*Asked: Jun 28th, 2018

*account_balance_wallet*$20

**Question description**

- Using contingency tables to solve probabilities
- Joint probabilities
- Dependent and Independent Events
- Conditional Probability (Given)
- Combinations, Permutations and Counting Rules

- Binomial probabilities, including the standard deviation and variance of the distribution
- Poisson distributions
- Expected value,
**BUT NOT**the standard deviation and variance of a Discrete Distribution

## Tutor Answer

The solution is attached in pdf and word format (same info).Please, give me feedback.

Question

The following table shows part of the probability distribution for the number of Wookies that

play chess at Chalumβs Spaceport Cantina on Saturday nights. The mean of the distribution is

known to be 1.55. What are the missing values for A and B, (1 and 3)?

Number of Wookies

0

1

2

3

4

P(Wookies)

0.30

π₯

0.25

π¦

0.10

Solution

0.30 + π₯ + 0.25 + π¦ + 0.1 = 1

0.65 + π₯ + π¦ = ...

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