# 90% of students at a university use a backpack, while the rest do not. Of all the students, 50% carry their laptops with them and 5% carry neither a backpack nor laptop. What percentage of students carry their laptops and

22,755 results
1. ## Probability - Math

According to the record of the registrar's office at a state university, 35% of the students are freshman, 25% are sophomore, 16% are junior, and the rest are senior. Among the freshmen, sophomores, juniors, and seniors, the portion of students who live in

2. ## Statistics

At one university, the students are given z-scores at the end of each semester instead of traditional GPA's. The mean and standard deviation of all the student' culmulative GPA's, on which the z-scores are based, are 2.7 and .5 respectively. i understand

3. ## statistics

The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of 3.02 and a standard deviation of .29. Find the probability that the mean GPA of a random sample of 20 students selected from this university is

4. ## Economics

Suppose a university decides to alter its tuition schedule by separating its students based on how many years of college they have completed. Most university programs require four years to complete. First-year students would get a 13% tuition reduction.

5. ## Probability

At a certain university, 30% of the students major in math. Of the students majoring in math, 60% are males. Of all the students at the university, 70% are males. a) What is the probability that a student selected at random in the university is male and

6. ## Algebra 1

you are hiking. the total weigh of your backpack and its contents is 13 3/8 pounds. you want to carry no more than 15 pounds. how many extra water bottles can you add to your backpack if each bottle weighs 3/4 pound?

7. ## Statistics

According to the record of the registrar's office at a state university, 35% of the students are freshman, 25% are sophomore,16% are junior and the rest are senior. Among the freshman, sophomores, juniors and seniors, the portion of the students who live

8. ## Math

A university conducts a study of tobacco use among 1000 of its students. Researchers survey male volunteers and female volunteers to find the frequency of tobacco use. The study finds that, of the people surveyed, 250 men and 50 women regularly use

9. ## Statistics

The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past few years. It is estimated that approximately 90% of students now own a cell phone and 10% do not own a cell phone. Fifteen

10. ## Science

Which question can be answered by science? A) Which type of candy tastes best? B) Which kind of backpack do students purchase most often? C) Why should we help those less fortunate than us?

11. ## Math

A state university wants to increase its retention rate of 4% for graduating students from the previous year. After implementing several new programs during the last two years, the university reevaluated its retention rate. Identify the Type I error in

12. ## statistics!

1) Entry to a certain University is determined by a national test. The scores on this test are normally distributed with a mean of 500 and a standard deviation of 100. Tom wants to be admitted to this university and he knows that he must score better than

13. ## physics

A backpack full of books weighing 58.0 rests on a table in a physics laboratory classroom. A spring with a force constant of 140 is attached to the backpack and pulled horizontally. If the backpack begins to slide when the spring ( = 140 ) stretches by

14. ## science

Suppose that a biologist states that the average height of undergraduate students at your university is 205 cm plus or minus a standard deviation of 17 cm. What does this mean? Does it mean that the height of undergraduates at the university ranges from 17

15. ## math

Emily has a coupon for 20% off her purchase. She finds a backpack on the discount rack. It's original price is \$60 but is 30% off. Emily thinks 30% and 20 % make 50% so the backpack will be \$30. Is Emily correct? Explain your answer.

16. ## physics

11. You did 150. J of work lifting a 120.-N backpack. a. How high did you lift the backpack? b. How much did the backpack weigh in pounds? (Hint: There are 4.448 N in one pound.)

17. ## statistics

1. The on-campus housing costs for a semester at a state university are Normally distributed with a mean of \$1553 and a standard deviation of \$329. (a) What is the distribution of the mean on-campus housing cost for a semester at this university for a

18. ## Mathmatics

A large university accepts60 ​% of the students who apply. Of the students the university​ accepts, ​35% actually enroll. If 30,000 students​ apply, how many actually​ enroll?

19. ## Physical Science

What is the weight of a 4.82 kg backpack in Newton and the acceleration of the backpack if a net force of 10.0 N is applied in m/s2?

20. ## Computer programming

A university has 3000 students.These students are divided in four categories 1.B Tech 2.M Tech 3.Ms 4.Phd Draw a flowchart & algorithm to find percentage of the students in each category

21. ## stats

How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval? I was told last night that there would be an answer in a couple of hours??????????????????????

22. ## probability and statistics

Chapter 9: 17. Do students at various universities differ in how sociable they are? Twenty-five Students were randomly selected from each of three universities in a region and Were asked to report on the amount of time they spent socializing each day with

23. ## Economics

Suppose a university decides to alter its tuition schedule by separating its students based on how many years of college they have completed. Most university programs require four years to complete. First-year students would get a 13% tuition reduction.

24. ## Math Statistics

Students enrolled in an introductory statistics course at a university were asked to take a survey that indicated whether the student has a visual or verbal learning style. Of the 39 students who took the survey, 25 were judged to have a visual learning

25. ## physics

You push your backpack, mass 2.8 kg across the desk with a force of 49.3 N. Calculate the acceleration of the backpack. Neglect friction forces and give your answer to 3 significant figures.

26. ## math

1) John usually gets to work by driving 29 miles down Greenwich Street, which goes from his house to his office in a straight line. One week, Greenwich Street is closed due to construction, so John gets to work by driving 13 miles wests on 57th street, and

27. ## math help

A survey was done recently by the Royal Bank with Ipsos Reid (reported in Globe and Mail Aug 16 2010) about financial issues that university students face. (Data used here is based on that survey, but randomized to be still within the margin of error of

28. ## stats

A survey was done recently by the Royal Bank with Ipsos Reid (reported in Globe and Mail Aug 16 2010) about financial issues that university students face. (Data used here is based on that survey, but randomized to be still within the margin of error of

29. ## science

a crane does 62,500. J of work lifting a 120.-N backpack? a. How high did you lift the backpack? b. How much did the backpack weigh in pounds? (Hint: There are 4.448 N in one pound.)

30. ## MATH

Andre wants to buy a backpack. The normal price of the backpack is \$40. He notices that a store that sells the backpack is having a 30% off sale. What is the sale price of the backpack?

31. ## Statistics

12. The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past few years. It is estimated that approximately 94% of students now own a cell phone. Twenty five students are to be selected

32. ## statistics

In a study of the effect of college student employment on academic performance, the following summary statistics for GPA were reported for a sample of students who worked and for a sample who did not work.( university of central florida undergraduate

33. ## physics

A backpack full of books weighing 43.0 N rests on a table in a physics laboratory classroom. A spring with a force constant of 150 N/m is attached to the backpack and pulled horizontally, as indicated in the figure. If the spring stretches by 2.30 cm, what

34. ## statistics

1. A simple random sample of 400 students is taken at a large university. The average height of the sampled students is 68 inches and the SD is 2 inches. The distribution of heights in the sample follows the normal curve very closely. An approximate 68%

35. ## calculus

it costs 8 dollars to manufacture and distribute a backpack.If the backpack sell at x dollar each, the number sold , n, is given by n= 3/(x-8)+5(100-x) . Find the selling price that will maximize the profit.

36. ## Physics

You are carrying a backpack across campus. What is the work done by your verticals carrying force on the backpack? Please explain...

37. ## physics

you are carring a backpack across campus. What is the work done done by your vertical carring force on the backpack? Explain

38. ## math

Suppose A is the set of students registered at the University of Calgary, and C is the set of courses currently being offered at the University of Calgary. Under what conditions is each of the following a function? a) {(a, c) | a’s first class each week

39. ## Algebra

Use the five steps for solving problems Enrollment at a particular online university is 11,600. There are seven times as many students who work full time as there are students who do not. How many students work full time and how many do not?

40. ## Math

90% of students at a university use a backpack, while the rest do not. Of all the students, 50% carry their laptops with them and 5% carry neither a backpack nor laptop. What percentage of students carry their laptops and use a backpack?

41. ## statistics

Suppose that on a certain examination in advanced mathematics, students from University A achieve scores which are normally distributed with a mean of 625 and a variance of 100, and that students from University B achieve scores which are normally

42. ## college

Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with their students.

43. ## physics

In Figure 10-1, if the force exerted on a 3.0-kg backpack that is initally at rest is 20.0 N and the distance it acts over is 0.25 m, what is the final speed of the backpack?

44. ## physics

19. In Figure 10-1, if the force exerted on a 3.0-kg backpack that is initally at rest is 20.0 N and the distance it acts over is 0.25 m, what is the final speed of the backpack?

45. ## statistics

The Dean of a university claims that no more than 10% of the students drop out of university. She chooses a random sample of 500 students and decides that she will accept the claim only if no more than 25 of the 500 students drop out of university. In fact

46. ## SS

Nivea wants to buy a new backpack. She looks at different choices. One store has a yellow backpack and a large blue one that she likes. Another store has a big, red backpack and a smaller red one. Nivea wants a big backpack and she chooses the bigger blue

47. ## College statistics

Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students.

48. ## statistics

. Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other

49. ## statistical psychology

Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students.

50. ## Psychology/Statistics

Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students.

51. ## statistics

Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students.

52. ## statistics

Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students.

53. ## statitics

17. Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other

54. ## MARH

Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students.

55. ## MATH

The ratio of graduate students to undergraduate studaent at a certain university is 4 to9. if there are 2340 students at the university how many undgergraduates are there?

56. ## physics

If You did 150 joules of work lifting a 120 newton backpack.A) How high did you lift the backpack?B)how muck did the backpack weigh in pounds?

57. ## Math

A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 238 students and asked each to provide the amount of time they spent traveling to campus. This variable, travel time, was then

58. ## physics

You take your backpack out of the car, hike to the top of a nearby mountain, and return with your backpack to your car at the bottom. Have you changed the amount of your backpack's mechanical energy?

59. ## algebra

Please show work* . i don't get how to do this at all only 1/3 of the university students wanted to become teachers . if 2600 didn't want to become teachers, how many university students are there?

60. ## Editorial Evaluation (Writeacher)

What do you think? Does it require any improvements? What do you suggest? What I have been assigned: "[w]rite a 3-paragraph editorial that tries to persuade students at the University of Georgia to accept African-American students." What I have written:

61. ## stasticstics

Blue Nile University recently conducted a survey of undergraduate students in order to gather information about the usage of the library. The population for this study included all 4000 undergraduate students enrolled in the university. The library

62. ## probality

Blue Nile University recently conducted a survey of undergraduate students in order to gather information about the usage of the library. The population for this study included all 4000 undergraduate students enrolled in the university. The library

A. The GPAs of all 5540 students enrolled at a University have an approximately normal distribution with a mean of 3.02 and a standard deviation of 0.29. Let x be the mean GPA of a random sample of 48 students selected from this University. Find the mean

64. ## Stats

A public heath official wanted to know how often university students visit their student health centers due to illness or injury. The official took a nationwide random sample of 120 university students and found an average of (x bar) = 2.30 visits per

65. ## statistics

2. The director of admissions at a large university advises students that the cost of textbooks will average more than \$300 for a typical semester. A random sample of 80 students enrolled in the university shows a sample mean cost of \$315.40 and a sample

66. ## Probability

According to the record of the registrar's office at a state university, 40% of the students are freshman, 25% are sophomore, 20% are junior, and the rest are senior. Among the freshmen, sophomores, juniors, and seniors, the portion of students who live in

67. ## statistics

1. A simple random sample of 400 students is taken at a large university. The average height of the sampled students is 68 inches and the SD is 2 inches. The distribution of heights in the sample follows the normal curve very closely. An approximate 68%

68. ## statistics

FBM 124 class consists of 10 male and 12 female students. Two students were chosen to represent the university to an international forum. Compute the probability of choosing (a) two female students (b) no more than 1 male student c)same genders students

69. ## Critical thinking

Evaluate the following argument. In your evaluation you should address whether each premise is acceptable or unacceptable, providing the condition of premise acceptability/unacceptability, indicate the nature of each inference (deductive or inductive), and

70. ## science

a mr wikinson backpack weighs 45 pounds if there are 453.7grams in one pound what is the mass of his backpack?

71. ## 7th grade language arts

Choose the demonstrative pronoun is the following sentence: "This invitation fell out of her backpack." her of backpack this

72. ## english

In each of the following sentences, insert correct capitalization and marks of punctuation whenever they are needed. Are these sentences correct. 1. On a recent blustery February afternoon, students were tearing down a sagging porch. 2. They are part of a

73. ## Statisitcs

A large university campus has 60,000 students. The president of the students' association wants to conduct a survey of the students to determine their views on an increase in the student activity fee. She would like to acquire information about all the

74. ## Question about University (general).

Hello! I'm just trying to get an understanding of the reputations of some of the fine post-secondary institutions in Canada. I know this is not a homework question, and that all of the educators on this site are busy helping with homework questions. But,

75. ## Sam

only 2/9 the university students wanted to become math teachers. if 2800 didn't want to become math teachers how many university students were there? So, 2/9 * WN = 2800? How would you work it out?

76. ## Bus 221, Devry

How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?

77. ## Statistics

How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?

78. ## statistics

How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?

79. ## college

How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?

80. ## Statistics

How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?

81. ## Statistics

The grades for Economics students at a large university are found to be normally distributed with a mean of 76 and a standard deviation of 4. What proportion of the students are expected to have a grade between 84 and 88?

82. ## statistics

A class roster includes 24 males students and 15 female students who are IT majors. If 4 students from the group are selected to represent IT majors at a University meeting, what is the probability 2 will be male and 2 will be female?

83. ## science

Mr.wilinson carried his backpack 12kilometers and set up camp on the edge of cutthroat lake it took him 3 hours to get there from the trailhead how much work did he do on his backpack on the hike in?(1pound=453.7grams=4.1newtons)EXPAIN

The dean of students is announcing a reception for new nontraditional students. Which of the following is the BEST subject line? a) Nontraditional Students b) Reception to Welcome Nontraditional Students Who are Attending the University for the First Time

85. ## Discussion

I need some ideas. What are the objectives that your university seeks to pursue? a) How may success in achieving these objectives be measured? b)To what extent do the objectives of various subunits of your university complement or contradict each other?

86. ## General Question

I need help. I tried searching on google but there isn't any solutions. How can I get rid of a bright pink pen mark on my white backpack? Also since the backpack is white, there are some dirt stains on it? What should I do?

87. ## Physical Science 2nd Semester

A student lifts a backpack with a force of 50 Newtons. She lifts the backpack 2 meters off the floor. Calculate the work that she has done.

88. ## Discrete Math

(2) Suppose A is the set of students currently registered at the University of Calgary, B is the set of professors at the University of Calgary, and C is the set of courses currently being offered at the University of Calgary. Under what conditions is each

89. ## math

A random group of seniors was selected from a university and asked about their plans for the following year. The school advising office claims that 60% of the students plan to work, 30% of the students plan to continue in school, and 10% of the students

90. ## A Opinion From Ms. Sue

What do you think? Does it require any improvements? Do you find what I have written persuasive? What do you suggest? What I have been assigned: "[w]rite a 3-paragraph editorial that tries to persuade students at the University of Georgia to accept

91. ## statistics

Assume that you are preparing a report on MM207 statistics students at Kaplan University to present to the Kaplan Board of Trustees. Prepare an appropriate graphical representation for each of the following variables. a) The different majors of students

92. ## Math (Combinatorics)

40 students attended the brilliant summer camp at Stanford University. "k" of the students at the camp are working on math problems and the others are working on non-math problems. One of the camp mentors noticed that whenever all the students were

93. ## math

Suppose a different student reaches in the bag, randomly selects their twenty chips, and estimates that 60% of the students are male. Based on this sample, what is a good estimate for the number of enrolled university students that are female?

The director of admissions at a large university says that 15% of high school juniors to whom she sends university literature eventually apply for admission. In a sample 0f 300 persons to whom materials were sent, 30 students applied for admission. In a

95. ## science

table is lifted to backpack starts to slide off. If table makes a 21 degree angle with floor, what is coefficient of static friction between backpack and the table?

96. ## math 156

The number of students at another university increased from 14,000 students in 1971 to 30,000 in 1975. What was the percent increase in enrollment during this period?

97. ## math

The number of students at another university increased from 14,000 students in 1971 to 30,000 in 1975. What was the percent increase in enrollment during this period?

98. ## Math

The number of students at another university increased from 14,000 students in 1971 to 30,000 in 1975. What was the percent increase in enrollment during this period?

99. ## math

The enrollment at a university increased from 9,000 students to 12,500 students over a period of 5 years. What is the percent increase in enrollment?

100. ## math

The number of students at a university is 1320, and the number increases by 8% each year. Write an exponential function to model this situation. Then find about how many students there will be in 5 years.