The graph shows the average molecular speed of four gases a 27 °C.

What, if any, relationship is observed between the average molecular speed and the molar mass of the gas?
There is no relationship between the average molecular speed and the molar mass.
The average molecular speed decreases as the molar mass of the gas increases.
The average molecular speed increases as the molar mass of the gas increases.
The average molecular speed decreases as the molar mass of the gas decreases.
Estimate the average molecular speed of helium at 27°C.
average molecular speed of helium:
In: Chemistry
27. The nurse is caring for a client with a nursing diagnosis of impaired skin integrity related to a stage III pressure ulcer. What would be the most important outcome for this client?
A. The client keeps the area clean and dry
B. The nurse turns the patient every two hours
C. The client does not exhibit any signs or symptoms of infection
D. The client is unaware of the prevention measures for pressure ulcers
In: Nursing
In: Economics
Suppose x has a distribution with a mean of 70 and a standard deviation of 27. Random samples of size
n = 36
are drawn.
(a) Describe the
x distribution
and compute the mean and standard deviation of the distribution.
x
has ---Select--- a binomial a geometric a Poisson a normal an approximately normal an unknown distribution with
mean μx =
and
standard deviation σx = .
(b) Find the z value corresponding to
x = 61.
z =
(c) Find
P(x < 61).
(Round your answer to four decimal places.)
P(x < 61) =
(d) Would it be unusual for a random sample of size 36 from the
x distribution to have a sample mean less than 61?
Explain.
No, it would not be unusual because more than 5% of all such samples have means less than 61.Yes, it would be unusual because less than 5% of all such samples have means less than 61. Yes, it would be unusual because more than 5% of all such samples have means less than 61.No, it would not be unusual because less than 5% of all such samples have means less than 61.
In: Statistics and Probability
Find the duration of a bond with a settlement date of May 27, 2023, and maturity date November 15, 2034. The coupon rate of the bond is 6.5%, and the bond pays coupons semiannually. The bond is selling at a bond-equivalent yield to maturity of 7.5%. Use Spreadsheet 16.2. (Do not round intermediate calculations. Round your answers to 4 decimal places.)
In: Finance
Assume that the gene trpA in an auxotrophic strain of
E. coli is located at 27 minutes, whereas the gene
pyrE is located at 81 minutes.
Present an experimental scheme that would allow you to convert one
of the auxotrophic strains to a prototrophic strain.
A. F+ (auxotroph) × F− (wild type)
B. Hfr (auxotroph) × F− (auxotroph)
C. Hfr (auxotroph) × F− (wild type)
D. Hfr (wild type) × F− (auxotroph)
E. F+ (wild type) × F− (auxotroph)
The correct answer is D, but I don't understand why. Could someone explain this? Thank you!
In: Biology
. A set of anatomy test scores has a mean of 27 and a standard deviation of 4.2. Calculate the raw scores for each of the following z scores: –5.3, –2.1, 0, 1, and 3.1.
8. For the following research question, create one null hypothesis, one directional research hypothesis, and one nondirectional research hypothesis.
Null:
Directional:
Nondirectional:
In: Statistics and Probability
27) Android distribution of fat increases the incidence of all of the following except?
A.
HTN
B.
CAD
C.
Liver CA
D.
Type II DM
C.
Too much gynoid (pear) fat
D.
Too much insulin
In: Nursing
A recent study conducted by a health statistics center found that 27% of households in a certain country had no landline service. This raises concerns about the accuracy of certain surveys, as they depend on random-digit dialing to households via landlines. Pick five households from this country at random.
a) What is the probability that all five of them have a landline?
b) What is the probability that at least one of them does not have a landline?
c) What is the probability that at least one of them does have a landline?
A national survey found that 45% of adults ages 25-29 had only a cell phone and no landline. Suppose that three 25-29-year-olds are randomly selected.
a) What is the probability that all of these adults have only a cell phone and no landline?
b) What is the probability that none of these adults have only a cell phone and no landline?
c) What is the probability that at least one of these adults has only a cell phone and no landline?
In: Statistics and Probability
In a normal distribution with mean = 27 and standard deviation =
4 Find the probability for
a.) 23 < x < 31
b.) 27<x<35
c.) 25 < x < 30 d.) x>26
e.) x < 24
In: Statistics and Probability