Use the table to the right, which shows the age distribution
of those who earned less than minimum wage in a recent year. If a
worker is randomly selected from those surveyed, what is the
probability that the person is
younger than 65? |
|
Age |
Working Below Minimum Wage (thousands) |
---|---|
16-19 |
323 |
20-24 |
438 |
25-34 |
325 |
35-44 |
187 |
45-54 |
119 |
55-64 |
55 |
65 and older |
39 |
Solution :
Total = 1486
The probability that the person is younger than 65 is
= (323 + 438 + 325 + 187 + 119 + 55) / 1486
= 1447 / 1486
= 0.9738
Use the table to the right, which shows the age distribution of those who earned less...
Use the frequency distribution to the right, which shows the number of voters (in millions) according to age, to find the probability that a voter chosen at random is in the given age range. not 65 years old or older 18 to 20 = 7.97 21 to 24 = 9.9 25 to 34 =23.4 35 to 44 = 27.7 45 to 64 =57.5 65 and over = 27.4
Are gender and age-associated with each other for emergency room visits? Do a chi-squared test for the following. Please report the expected counts as a matrix. Also, is this a test of independence or not? Make the 4 steps cleared as outlined on page 325 of your textbook. The following data represent the gender of 489 randomly selected patients who visited the emergency room with an injury-related emergency. Gender (Age) Under 15 15-24 25-44 45-64 65-74 75 and older Male...
2. Are gender and age associated with each other for emergency room visits? Do a chi-squared test for the following. Please report the expected counts as a matrix. Also, is this a test of independence or not? Make the 4 steps cleared as outlined on page 325 of your textbook. Visits to the Emergency Room The following data repre- sent the gender and age of 489 randomly selected patients who visited the emergency room with an injury-related emergency Onder Tirana...
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The following table shows the percentage of individuals in each age group who use an online tax program to prepare their federal income tax return (Complete Tax website, November 9, 2012). Excel File: data05-65.xls Online Tax Program (%) Age 18-34 35-44 45-54 55-64 65+ Suppose a follow-up study consisting of personal interviews is to be conducted to determine the most important factors in selecting a method for filing taxes. a. How many 18-34 year olds must be sampled to find...
use the frequency distribution to the right, which shows the number of voters (in millions) according to age, to find the probability that a voter chosen at random is in the given age range not between 18 to 20 years old. the probability is? age of voters 18-20 frequency 8.7 21-24. 10.4 25-34. 23.1 35- 44. 27.6 45-64. 57.9 65 and over. 28.1
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Citizen registration and voting varies by age and gender. The following data is based on registration and voting results from the Current Population Survey following the 2012 election. A survey was conducted of adults eligible to vote. The respondents were asked in they registered to vote. The data below are based on a total sample of 760. We will focus on the proportion registered to vote for ages 18 to 24 compared with those 25 to 34. The expectation is...
Citizen registration and voting varies by age and gender. The following data is based on registration and voting results from the Current Population Survey following the 2012 election. A survey was conducted of adults eligible to vote. The respondents were asked in they registered to vote. The data below are based on a total sample of 760. We will focus on the proportion registered to vote for ages 18 to 24 compared with those 25 to 34. The expectation is...