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Questions (79)

Let X and Y be independent random variables with zero means, and variances 1 and 2, respectively. Let U=X+Y and V=X+2Y .Find the
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2. 673 views
Let X1 , X2 , X3 be i.i.d. Binomial random variables with parameters n=2 and p=1/2 . Define two new random variablesY1 =X1−X3,
1. 1 answer
2. 1,359 views
Let X and Y be jointly continuous nonnegative random variables. A particular value y of Y is observed and it turns out that
1. 2 answers
2. 3,554 views
Problem 2.Using the central limit theorem and a standard normal table or calculator, what is the probability that a college
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2. 897 views
Suppose that Y is an exponential random variable with parameter (and mean) equal to 2. Find the MAP estimate of Y, given that
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2. 7,978 views
Q2_1: QUIZ 2, PROBLEM #1The shaft ABC is a solid circular cylinder of constant outer diameter 2R and length 3L. The shaft is
1. 8 answers
2. 697 views
The bar in the figure has constant cross sectional area A. The top half of the bar is made of material "1" with mass density
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2. 489 views
A helium-ﬁlled balloon contains 143 mL ofgas at a pressure of 0.99 atm. What volume will the gas occupy at standard pressure?
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2. 590 views
Divers know that the pressure exerted bythe water increases about 100 kPa with every 10.2 m of depth. This means that at 10.2 m
1. 1 answer
2. 632 views
Rearrange to make f the subject, showing your work step by step:hf = hcT / b
1. 1 answer
2. 518 views
State the degree of each of the following:a)3 b)x^0 My answer for a) was: 1 My answer for b) was: 1 BUT at the back of the book,
1. 7 answers
2. 543 views
here's my question:when x is to the power of 1, the answer is x, correct? And when x is to the power of zero, the answer is 1,
1. 1 answer
2. 364 views
A block of ice at 0°C whose mass initially is m = 12.5 kg slides along a horizontal surface, starting at a speed vo = 4.10 m/s
1. 1 answer
2. 1,175 views
A 27.0 kg block at rest on a horizontal frictionless air track is connected to the wall via a spring. The equilibrium position
1. 1 answer
2. 1,230 views
Determine the sum of the series:∞ ∑ n = 0 (75^(1/(n+1)) − 75^(1/(n+2)))
1. 1 answer
2. 424 views
Determine the solution to the initial value differential equation:y′+2*y^2*e^(5*x)= 0 y(0)=2
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2. 447 views
Motion in a CircleA particle P travels with constant speed in a circle of radius 5.6 m and completes one revolution in 36.0 s.
1. 0 answers
2. 690 views
Most of the Declaration of Independence was the work of ......?John Adams. Ben Franklin. Thomas Jefferson. Sam Adams. im
1. 1 answer
2. 1,279 views
The decisive battle of French and Indian was was the battle of Ft.Necessity.Is that information right or wrong??
1. 3 answers
2. 560 views
What are the health risks of consuming a high amount of sugar?A. High sugar raises your glucose levels for long-term energy. B.
1. 2 answers
2. 692 views
Which of the following statements is true?A. Fiber concentration is found only in the skins of fruits and vegetables. B. Eating
1. 1 answer
2. 3,127 views
Sodium intake can be controlled byA. carefully reading labels of processed foods. B. choosing frozen dinners over fast foods. C.
1. 1 answer
2. 1,084 views
Which type of exercise increases fat loss?A. High-intensity B. High-duration C. High-duration/low-intensity D.
1. 4 answers
2. 2,206 views
Which type of exercise increases fat loss?A. High-intensity B. High-duration C. High-duration/low-intensity D.
1. 2 answers
2. 729 views
Which of the following is true?A. It would take three to five hours to hydrate the body after a water loss of 3 percent. B. A
1. 1 answer
2. 827 views
What effect does the aging process have on dietary guidelines?A. You'll need additional calories to fuel the body. B.
1. 1 answer
2. 1,605 views
what is the literary term for:A conflict that exists within a character
1. 2 answers
2. 577 views
The main reason why you should reduce your intake of eggs is because egg yolksA. lack carbohydrates. B. are high in cholesterol.
1. 3 answers
2. 1,100 views
To lower your dietary cholesterol, you should reduce your intake ofA. vegetable oils. B. animal products. C. protein. D. cereal.
1. 1 answer
2. 670 views
Which of the following statements about alcohol is true?A. Alcoholic beverages should be consumed to lower health risks such as
1. 1 answer
2. 3,767 views
What effect does the aging process have on dietary guidelines?A. You'll need additional calories to fuel the body. B.
1. 0 answers
2. 622 views
Which of the following is true?A. It would take three to five hours to hydrate the body after a water loss of 3 percent. B. A
1. 2 answers
2. 645 views
The eating disorder characterized by compulsive overeating followed by self-induced vomiting and the use of laxatives or
1. 1 answer
2. 1,442 views
What is the most common injury for both aerobics instructors and students?A. Heel bruises B. Neck sprains C. Shin splints D.
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2. 537 views
A good aerobic facility will haveA. a lot of equipment. B. good ventilation. i think that both are right can you tell me if you
1. 1 answer
2. 532 views
When aerobic exercise is combined with calisthenics as well as warm-up and cooldown stretches, itA. is much more competitive
1. 1 answer
2. 552 views
A good aerobic facility will haveA. a lot of equipment. B. good ventilation. C. carpet over concrete flooring. D. dim lighting.
1. 2 answers
2. 467 views
Anaerobic training increases yourA. flexibility. B. red blood cell count. C. lung capacity. D. strength. I am confuesed thought
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2. 440 views
What is the training effect?A. The tendency to suffer injuries as a result of too much exercise B. Shortness of breath and
1. 1 answer
2. 577 views
The basic unit that describes energy costs in terms of oxygen consumption is theA. MET. B. kcal. C. ATP. D. ADP. is A the
1. 1 answer
2. 577 views
Which of the following refers to a static muscle contraction?A. Isotonic B. Isometric C. Isokinetic D. Eccentric to this
1. 2 answers
2. 577 views
A contraction that causes a muscle to lengthen rather than shorten is calledA. eccentric. B. isotonic. C. static. D. isokinetic.
1. 1 answer
2. 687 views
If 31/2 pounds of bananas cost $.98, how much would one pound cost?A. $.14 B. $.18 C. $.20 D. $.28 is d the right answer?
1. 1 answer
2. 762 views
Over a four-week period, Gail earned the following commissions?Week 1 $250.00 Week 2 310.00 Week 3 275.00 Week 4 195.00 What was
1. 2 answers
2. 1,281 views
Write 1,386 as the product of its prime factorsA. 2 x 693 B. 2 x 3 x 231 C. 2 x 3 x 7 x 33 D. 2 x 3 x 3 x 7 x 11 what do you
1. 2 answers
2. 1,093 views
Muscular atrophy involves a process in whichA. muscle fibers enlarge and increase protein filaments B. muscles deteriorate
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2. 1,340 views
Muscular atrophy involves a process in whichA. muscle fibers enlarge and increase protein filaments B. muscles deteriorate
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2. 827 views
Which one of these statements is true regarding blood circulation?A. For health and survival, it's critical for blood
1. 1 answer
2. 2,128 views
The system of the body primarily responsible for activating all physical movement is theA. cardiorespiratory. B. neuromuscular.
1. 2 answers
2. 2,606 views
The function of the pulmonary circuit of the heart is toA. make the lungs grow larger B. increase anaerobic muscle power. C.
1. 3 answers
2. 1,242 views
An overabundance of lactic acid forming after high-intensity exercise can possibly mke the muscles ache.Does it mean the same as
1. 1 answer
2. 575 views
Angelo earns $2,080 each month. His total deductions are 30% of his pay. How much is deducted from his pay each month?A. $62.40
1. 2 answers
2. 773 views
Angelo earns $2,080 each month. His total deductions are 30% of his pay. How much is deducted from his pay each month?A. $62.40
1. 3 answers
2. 1,941 views
Edgar Anderson earns $200 a week plus a 15% commission on all sales over $1,000. If Mr. Anderson's sales for one week are
1. 3 answers
2. 1,886 views
3/4 changed to percents? would it be 75%
1. 2 answers
2. 419 views
A certain alloy contains 5.25% copper.How much copper is there in a piece weighing 200 pound? A)1.50 pounds B)105 poounds C)10.5
1. 5 answers
2. 1,509 views
567 vacuums were sold this year the previous year 540 vacuums were sold what is the percent of increase in sales from last year
1. 1 answer
2. 850 views
paul can type 60 words per minute and jen can type 80 words per minute. how dose puls typing speed compare to jen?1.Paul can
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2. 1,024 views
what do you think.who is primarily responsible for your heath?
1. 2 answers
2. 438 views
WKOD-13%WCLM-24% WANR-22% WWCN-41% this is a circle graph of 400 people were asked to identify th TV channel they watch the
1. 5 answers
2. 4,646 views
WKOD-13%WCLM-24% WANR-22% WWCN-41% this is a circle graph of 400 people were asked to identify th TV channel they watch the
1. 3 answers
2. 683 views
The ratio of an object weights on Earth to its wieght on Neptune is 5:7. HOw much would a person who wieghs 150 pounds in Earth
1. 2 answers
2. 809 views
(1) We decided to climb Mt. Rainer, but it was a long, hard journey to WashingtonState from Medford, Oregon. (2) We were worried
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2. 634 views
which one of the following sentence does the verb agree with the subject?A.The book that explains the plays is on the shelf.
1. 5 answers
2. 1,401 views
Which of the following includes an error in subject-verb agreement?A.Carrie and Lucille work in the cafeteria. B. Either June or
1. 1 answer
2. 518 views
In which one of the following complete subjects agrees with the predicate"has learned spanish"? A.Jennifer and her class B.The
1. 3 answers
2. 614 views
which one of the following word is a singular verb?A.sees B.fly C.shirts D.walk I think it's A.sees am i correct
1. 4 answers
2. 1,029 views
Detective Homer Fry and jenine Small looked high and low for clues.is the simple subject also the complete subject in this
1. 1 answer
2. 509 views
"I think it would be best to study the problem carefully.dose this sentence make s statement or gives a command.
1. 3 answers
2. 630 views
Can you give me a sentence that the simple subject also is the complete subject in it
1. 1 answer
2. 556 views
identify the simple subject in this sentence."There are too many people on this elevator."I think that the simple subject is
1. 3 answers
2. 708 views
which revised list is in alphabetical order?what dose this question mean or looking for?
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2. 999 views
a simple subject can be either a noun or a/an..........is is a noun and a pronoun?
1. 1 answer
2. 487 views
Be so kind as to feed my dog.Can this be an interrogative sentence? im bit confused.
1. 2 answers
2. 525 views
in which sentence dose the subject comes after the verb?A.On the next street,you'll find the shoe shop. B.Where is my Elvis CD?
1. 1 answer
2. 474 views
Nietherrecipt foriegn believe which word is spelled correctly
1. 3 answers
2. 458 views
either Mark or his students BLANKon the ferry boat. if you want to use the present tense, which word would fill the BLANK. A.are
1. 1 answer
2. 569 views
As it sailed south,Lord Nelson's great ship,Victory,met the Spanish fleet near Trafalgar.complete predicate of the sentence
1. 1 answer
2. 902 views
is homonym used correctly?If you ask me,there's no hobby like fishing
1. 1 answer
2. 1,101 views