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Questions in Grade College

[Jawaban] An ecologist studied the spatial distribution of tree species in a wooded area. From a total area of 21 acres, he randomly selected 144 quadrats (plots), each 38 feet square, and noted the presence or absence of maples and hickories in each quadrat. The results are shown in the table. Maples | | | Present | Absent | | :-------- | :------ | :------ | :----- | | Hickories | Present | 26 | 63 | | | Absent | 29 | 26 | She wants to test the hypothesis that the two species are distributed independently of each other. (c) Compute the chi-square test statistic. (d) Find the [tex]$p$[/tex]-value. (e) State the conclusion.

[Jawaban] An oil reservoir exists at its bubble-point pressure of (3,000 psia) and temperature of [tex]$\left(160^{\circ} F \right)$[/tex]. The oil has an API gravity of [tex]$\left(42^{\circ}\right)$[/tex] and gas-oil ratio of ([tex]$600 scf / STB$[/tex]). Initial oil formation volume factor is 1.396 bbl/STB. The following additional data are also available: Reservoir area = 640 acres. Average thickness = 10 ft. Connate water saturation = 0.25 Effective porosity = 15%. The OIIP in STB IS: a. 4 MM STB b. 4001.260 M STB c. 400 M STB d. 4 MMM STB

[Jawaban] \frac{\left(x^2-y^2\right)}{(8 x-2 y)} \frac{(16 x-4 y)}{(x+y)^2}

[Jawaban] If the probability of a given event is 24/61, what is the probability of the event not happening? A. 37/61 B. 39/61 C. 61/122 D. 24/39

[Jawaban] Question 3 of 20: Select the best answer for the question. What species of human lived in Europe and Western Asia at the same time as modern humans? A. Australopithecus B. Neanderthals C. Homo erectus D. Homo habilis

[Jawaban] Calculate the inventory depreciation expense for June using a 25% depreciation rate. | (in $000) | Begin Inv. | Purchases | COGS | |---|---|---|---| | June | 70 | 30 | 40 | | July | 60 | 10 | 50 | | August | 20 | 50 | 30 |

[Jawaban] Which one of the following staff members would check guests into a luxury hotel? A. Host B. Porter C. Concierge D. Receptionist

[Jawaban] Model the entire radical $\sqrt{80}$ as a mixed radical. Record the value of the coefficient.

[Jawaban] The base of a solid right pyramid is a square with an edge length of [tex]$n$[/tex] units. The height of the pyramid is [tex]$n-1$[/tex] units. Which expression represents the volume of the pyramid? A. [tex]$\frac{1}{3} n(n-1)$[/tex] units[tex]$^3$[/tex] B. [tex]$\frac{1}{3} n(n-1)^2$[/tex] units[tex]$^3$[/tex] C. [tex]$\frac{1}{3} n^2(n-1)$[/tex] units[tex]$^3$[/tex] D. [tex]$\frac{1}{3} n^3(n-1)$[/tex] units[tex]$^3$[/tex]

[Jawaban] If a doctor wanted to be sure that a patient's urinary system is working properly, what would be the BEST indicators to investigate? A. the balance of salts and amount of urine produced B. the amount of sugars in the blood C. the amount of nutrients absorbed into the bloodstream D. the body's ability to digest carbohydrates and proteins