The probability that a household has an annual income of less than $ 50 , 000 using following table which is based on a survey of annual incomes in 100 households . Income $ 0 − 24 , 999 $ 25 , 000 − 49 , 999 $ 50 , 000 − 74 , 999 $ 75 , 000 − 99 , 999 $ 100 , 000 or more Number of households 22 23 17 12 26
The probability that a household has an annual income of less than $ 50 , 000 using following table which is based on a survey of annual incomes in 100 households . Income $ 0 − 24 , 999 $ 25 , 000 − 49 , 999 $ 50 , 000 − 74 , 999 $ 75 , 000 − 99 , 999 $ 100 , 000 or more Number of households 22 23 17 12 26
Definition Definition For any random event or experiment, the set that is formed with all the possible outcomes is called a sample space. When any random event takes place that has multiple outcomes, the possible outcomes are grouped together in a set. The sample space can be anything, from a set of vectors to real numbers.
Chapter 13.3, Problem 65AYU
To determine
To calculate: The probability that a household has an annual income of less than $50,000 using following table which is based on a survey of annual incomes in 100 households .
QUESTION 3. STATISTICS. An analyst in the real estate business is interested in the relationship
between the cost of the monthly rent of an apartment and the size of an apartment, in big cities. She
gathers data for apartment buildings in 12 cities in 12 different states. In each city, she gets the
numbers for at least 5 different buildings and at least 40 apartments in each building. She reaches the
following conclusion: the rental cost of a 2-bedroom apartment is 50% more than the rental cost of a
1-bedroom apartment, and the rental cost of a 3-bedroom apartment is 50% more than the rental
cost of a 2-bedroom apartment.
Based on the paragraph, what is the minimum number of apartments she collected data on?
Do you think her sample was large enough to be statistically valid?
Based on the paragraph, are there any apartments or apartment buildings that she would have excluded
from her study?
Do you see any bias in how she selected apartments for her study?
Based on the paragraph, is…
Use the following table for questions 6-8:
U.S. Mortality, 2002-2006
Population
All Causes
Malignant Cancers
Accidents
Suicide
Homicide
0-4
1,619,647
5,354
38
415
0
148
5-14
3,454,723
998
106
400
29
88
15-24
3,111,073
5,364
140
1,300
351
3,000
25-34
2,586,870
6,848
290
1,310
447
2,100
35-44
2,718,213
11,849
1,172
1,600
354
1,000
45-54
2,145,421
21,000
4,200
1,500
219
600
55-64
1,174,312
24,000
7,000
800
99
200
65-74
700,169
28,000
9,000
539
68
75
75-84
348,221
28,478
8,000
452
48
48
85+
92,967
14,584
2,776
243
18
6
Source: National Center for Health Statistics
Calculate the YPLL due to homicides for ages 25-34. Use 75 as the reference age.
University Calculus: Early Transcendentals (3rd Edition)
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