A fleet of 150 buses was classified in the following ways: each bus had either a Diesel engine or not, carried atleast 50 passengers or not, and had been driven a lot (at least 500,000 kilometers) or not. Results showed that120 had diesel engines; 28 had Diesel engines, carried fewer than 50 passengers and had been driven a lot; 20did not have Diesel engines and carried fewer than 50 passengers; 90 carried at least 50 passengers; and 17 hadDiesel engines but were not driven a lot. How many had Diesel engines, carried over 50 passengers and weredriven a lot?O A. 125В. 103C. 47D. 80ОЕ. 75

The number of diesel engines is 120.

Answered: A fleet of 150 buses was classified in…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A survey of 150 freshmen business students at a local university produced the results listed below. How many students took only religion? 35 took history;42 took science;43 took religion;19 took history but not science;14 took science and religion;15 took history and religion;6 took all three
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A school Psychologist is interested in the effect of violent television programs on a child's agression depending on if the show is a cartoon or not. Eighty children were recruited and were divided into equal groups. Half of the children watched a violent television program while the other half watched a non- violent program. Half of the children watched a cartoon while the other half watched a show that was not a cartoon. The children were then placed in a small group and the researcher measured the level of agressiveness of each child. A) z- test B) t - test C) test independent samples D) T - TEST RELATED SAMPLES E) ANOVA F) FACTORIAL ANOVA G) repeated measures ANOVA H) pearson correlation i) chi square
9. For a 3x2x3 a. How many factors are in this design? b. How many levels do we have for each factor? c. How many separate ANOVAS do we have to conduct?
The manager of a theater that is open to residents of two towns, A and B, wants to know if the proportion of households from A that use the library is smaller than the proportion of households from B. In order to test this, the manager asks 45 households in A and 49 households in B whether anyone in their household had used the theater last summer. 23 of the households surveyed in A responded "yes", and 35 of the households in B responded "yes". Find the p-value that would be used to make a conclusion for this hypothesis test.
Following are the ingredients for serving five people with delicious crearry pasta sauce with asiago and smoked pepper. The table also shows the nutritional value per serving: Ingredients : +2 cup heavy cream ∗% teaspoon Kosher salt −% teaspoon cracked smoked black pepper +1 teaspoon freeze dried garlic +3 tablespoon cream cheese -3 tablespoon finely grated Asiago cheese +275gm pasta +\% cup reserved cooking water from pasta +200grn tendec, saiteed in a bit of olive oil, sait and pepper You got an order for sening 85 people in the party. Find the amount of the following ingredients required to serve 85 people with the deficious creamy pasta sauce with asiago and smoked pepper - heavy cream - Kosher salt - cracked smoked black pepper [ - treeze dried garlic - cream cheese - tnely grated Asiago cheese - Pasta - reserved cocking water from pasta - tender, sauteed in a bit of olve oil, sait and pepper You already purchased all the ingredients for serving the party of 85 people. A day…
There is some evidence that drinking moderate amounts of wine helps prevent heart attacks. following data on yearly wine consumption (liters of alcohol from drinking wine, per person) and yearly deaths from heart disease (deaths per 100,000 people) were collected the early 1990’s from 19 nations: Alcohol from wine Heart disease deaths Alcohol Country Heart discase deaths Country from wine Australia Austria Belgium Canada Denmark Finland France Iceland Ireland Italy Netherlands New Zealand Norway Spain Sweden Switzerland United Kingdom United States West Germany 167 266 227 2.5 18 211 167 131 191 220 297 71 211 300 107 1.9 0.8 65 1.6 3.9 2.9 2.4 2.9 0.8 86 207 5.8 1.3 1.2 2.7 115 285 199 172 9.1 0.8 0.7 7.9 Summary information: Alcohol from wine Heart disease deaths Мean 3.03 191.05 Standard Deviation 2.51 68.40 r = 0.71 Pleases, answer the following questions: 1- Explain what the value of r² = 0.71 represents in this study?
A group of 110 people, who lived at varying distances (in kilometers) from the 3 kilometer island nuclear power station, were asked if they thought a full evacuation of the area was required, when it went critical. The researches wanted to know if the opinion to evacuate or not depended on how far from the reactor people lived. The people were divided into 5 categories, based on the distance to the power station. Each person was given 3 choices: evacuation was needed, evacuation was not needed, they did not care about it. Evacuation needed x x x x -.. .-. --. Evacuation not needed X x x X X Do not care X x x X ... You are doing a Chi Square test for independence. Compute the degrees of freedom for this test.

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