The
goal of this lab is to understand and find simple probabilities and conditional,
probabilities, and to use the Addition Rule.
,
The,
Brookdale International Center compiled data about health issues across the,
globe. Choose one of the following tables,
to answer the questions that follow.,
,
Choice 1: ,
,
,
,
,
Percentage of Country Living in Poverty,
,
Divided at 30% of country in poverty,
,
,
,
,
,
Life Expectancy,
Divided at age 72,
,
,
,
,
,
Low,
,
High
Total
Shorter
20
50
70
Longer
68
14
82
88
64
152
Choice 2:?
Obesity
Rate
Divided at 19%
Malnutrition Rate
Divided at 9.2 per 100,000 people
Low
High
Total
Lower
26
54
80
Higher
50
12
62
76
66
142
Find simple probabilities.
1. Compute
the probability of being in Row 1. Use
the language of your data.
2. Compute
the probability of being in Row 2. Use
the language of your data and write as a sentence.
3. Compute
the probability of being in Column 1. Use
the language of your data and write as a sentence.
4. Compute
the probability of being in Row 1and
Column 1 using the appropriate frequency from your table. Use the language of your data and write as
a sentence.
5. Find
the probability of being in Row 1, given Column 1. Use the language of your data and write as
a sentence.
6. (a)
Comparing the probability in # 5 to the
probability in # 1, decide if Rows and Columns are independent. (b)
Clearly explain your reasoning, using a complete sentence and one of these
phrases:equally likely, more likelyor
less likely.
7. Find
the probability of being in Column 1, given Row 2. Use the language of your data.
8. Comparing
the probability in #7 to the probability in #3, determine if Rows and Columns
are independent. Clearly explain your
reasoning, using a complete sentence and one of these phrases:equally likely, more likelyorless likely.
Addition Rule
9. Use
the Addition Rule to find the probability of being in Row 1or Column 1.
10. List
two mutually exclusive events for your data.
Explain your reasoning.
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