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


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

image.png

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...

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 Chapter 27 you are introduced to the basic operation of saving and loan institutions -...

In Chapter 27 you are introduced to the basic operation of saving and loan institutions - banks that take deposits and then loan a portion of those deposits out to borrowers.

In the 2000s these institutions significantly increase the number of subprime mortgages they offered. Note: subprime mortgages are loans to people who have not-so-good credit and/or ability to make loan payments for home purchases. After the 2008-09 recession, they became much less common.

Your assignment is to submit a paper, 1-2 pages, in which you argue that subprime mortgages are or are not good for the country and the individuals who take these mortgages. Whichever position you take (for or against), please consider how more (or less) of these loans could have positive and negative effects.

In: Economics

Suppose x has a distribution with a mean of 70 and a standard deviation of 27....

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...

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...

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...

. 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.

  • What is the relationship between the quality of a marriage and the quality of the spouses’ relationships with their siblings?

Null:

Directional:

Nondirectional:

In: Statistics and Probability

27) Android distribution of fat increases the incidence of all of the following except?    A.  ...

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...

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...

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