Concept explainers
Army Housing A study of U S. Army housing trends categorized personnel as commissioned officers (C). warrant officers (W), or enlisted (E), and categorized their living facilities as on-base (B) rented off-base (R), or owned off-base (O) One survey yielded the following data.
Facilities | |||||
B | R | O | Totals | ||
C | 12 | 29 | 54 | 95 | |
Personnel | w | 4 | 5 | 6 | 15 |
E | 374 | 71 | 285 | 730 | |
Totals | 390 | 105 | 345 | 840 |
Find the number of personnel in each of the following sets
a
b
c
d
e
f
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Mathematical Ideas (13th Edition) - Standalone book
- Civil War Estimates of the Confederate Armys strength and losses for the battle of Gettysburg are given in the following table, where strength is the number of soldiers immediately preceding the battle and loss indicates a soldier who was killed, wounded, captured, or missing. Source: Regimental Strengths and Losses at Gettysburg. Unit Strength Loss I Corps Longstreet 20,766 7661 II Corps Ewell 20,666 6603 III Corps Hill 22,083 8807 Cavalry Stuart 6621 286 Total 70,076 22,557 a. Find the probability that a randomly selected confederate soldier was from the III Corps. b. Find the probability that a confederate soldier was lost in the battle. c. Find the probability that a I Corps soldier was lost in the battle. d. Which group had the highest probability of not being lost in the battle? e. Which group had the highest probability of loss?arrow_forwardCigarette Smokers The following table gives a recent estimate in millions of the smoking status among persons 25 years of the age and over their highest level of education. Source: National health interview survey. Education Current smoker Former smoker Non smoker Total Less than a high school diploma 7.90 6.66 14.12 28.68 High school diploma or GED 14.38 13.09 25.70 53.17 Some collage 12.41 13.55 28.65 54.61 Bachelors degree or higher 4.97 12.87 38.34 56.18 Total 39.66 46.17 106.81 192.64 a. Find the probability that a person is a current smoker. b. Find a probability that a person has less than a high school diploma. c. Find a probability that a person is a current smoker and has less than a high school diploma. d. Find the probability that a person is a current smoker, given that the person has less than a high school diploma. e. Are the events current smoker and less than a high school diploma independent events?arrow_forward
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