trey

I am taking a beginners class on Python, and have no clue how to do this problem. I have tried many times, but can't seem to get it. If you could write the code out so I can understand it, that would be awesome. Here is the question:

1. You are given a arbitrary numerical sequence that has the form 0, 1, 1, 3, 5, 11, 21,....  Each successive number, after the first two, is found by adding the number before it with two times the number two slots before it. For example, the 5th number in the sequence is (3)+day (1*2)=5 and the sixth number is (5)+(3*2)=11. Your goal is to write a loop that computes 30 terms in the sequence. Store this sequence as a list and then print the list. You should get the following output:

[0, 1, 1, 3, 5, 11, 21, 43, 85, 171, 341, 683, 1365, 2731, 5461, 10923, 21845, 43691, 87381, 174763, 349525, 699051, 1398101, 2796203, 5592405, 11184811, 22369621, 44739243, 89478485, 178956971]

The second question is:

Once you have you list of this sequence of numbers, use this list to calculate a new list of the ratios the current number in the list divided by the next number in the list. In other words, each number in the ratio list will be the number in your original list divided by the next number in your original list. Print the values of your ratio list.

Thanks so much for the help!

Body mass index (BMI) is a value derived from the mass and height of a person. The BMI is defined as the body mass divided by the square of the body height, and is commonly expressed in units of kg/m^2. The BMI is a convenient rule of thumb used to broadly categorize a person as underweight, normal weight, overweight, or obese based on tissue mass (muscle, fat, and bone) and height. This categorization is often debated an generally viewed as reasonable for population studies and inappropriate for individual evaluation.

In a mini study, data was collected on 8 subjects in Spain with the measurements in order for each subject of:

weights = [70, 75, 60, 30, 65, 80, 85, 100] kilograms (kg)

heights = [1.7, 1.8, 1.5, 1.42, 1.75, 1.8,1.85, 1.65] meters (m)

In other words, the first subject has a weight of 70 kg and a height of 1.7 m.

Print the BMI of these 8 subjects Make a list of the weights and a list of the heights, then loop through the lists to calculate and print the BMI of each subject in a sentence. For example, the

BMI of subject 1 is 24.2 kg/m^2.

BMI of subject 2 is 23.1 kg/m^2.

I have no idea how to do this. I learned how to do this using a 'for' loop, but I am completely lost after trying this many times. Thank you!

The supervisor of a production line believes that the average time to assemble an electronic component is 17 minutes. Assume that assembly time is normally distributed with a standard deviation of 3.8 minutes. The supervisor times the assembly of 20 components, and finds that the average time for completion was 17.85 minutes. Is there evidence that the average amount of time required to assemble a component is something other than 17 minutes?

We should reject at 9% level of significance if 

 test-statistic < -1.341 

 test-statistic > 1.392 

 | test-statistic | > 1.341 

 | test-statistic | > 1.695 

If α= 0.09, what will be your conclusion? 

not enough information to reach a decision 

Do not reject H0 

Reject H0 

The p-value of the test is equal to

0.8414 

0.1586 

0.3171 

Please show work/explain so I can understand this for my exam. THANK YOU!

Suppose time taken to grade an exam-paper by an examiner has mean 12.1 min. and standard deviation 5.8 min. If the examiner has to grade 41 exam-papers, what is the approximate probability that she will finish grading in less than 522 min. (assuming grading times are independent and she grades continuously)? (Answer to 4 decimal places)

I have no idea how to do this so some explanation would be appreciated as well!

THANK YOU SO MUCH!

Weakly earnings on a certain import venture are approximately normally distributed with a known mean of $488 and unknown standard deviation. If the proportion of earnings over $502 is 34%, find the standard deviation. Answer only up to two digits after decimal.

I have tried this multiple times and I still have no idea how to do this. Any help would be appreciated!

The annual assets for First Michigan corporation is approximately normally distributed with standard deviation 58 million. The mean is not known. However it is known that 62% of the assets is over 205.3 million. Find the mean assets value in millions. Answer to 2 decimal places.

I have no idea how to do this homework problem. Any help would be appreciated!

In a box there are 23 light-bulbs, of which 10 are not working. We select 9 light-bulbs at random without replacement. What is the chance that 4 of the selected light-bulbs are not working?  

I've attempted this close to 10 times, and still can't figure it out! It would be awesome if you could show me how to get to the answer so I can actually understand the problem. Thank you!

When circuit boards used in the manufacture of CD players are tested, the long-run percentage of defectives is 6%. A random sample of size n=24 of boards have been selected and checked.

The chance that the number of defective boards will exceed the mean by 2 standard deviation is:

I have no idea how to solve this and I've tried a ton, any help would be appreciated!

In a box there are 23 light-bulbs, of which 10 are not working. We select 9 light-bulbs at random without replacement. What is the chance that 4 of the selected light-bulbs are not working? 

I've attempted this close to 10 times, and still can't figure it out! Thanks for helping

I have no idea how to do this! I know it is very easy, but it's probably the notation that is confusing me! An explanation of how to do at least the first couple would be helpful!

Suppose we toss two fair dice. Let X = i+j, where i is the outcome of the first die, and j is the outcome of the second die, with i, j ∈ {1, 2, 3, 4, 5, 6}. 

Let p(x) = P(X=x) be the probability mass function of X. Round all answers to 4 decimal places.

p(2) =  

p(3) =  

p(4) =  

p(5) =  

p(6) =  

p(7) =  

p(8) =  

p(9) =  

p(10) =  

p(11) =  

p(12) = 

I actually have no clue how to do this. Any help would greatly be appreciated. Thanks! 

Suppose we toss two fair dice. Let X = i+j, where i is the outcome of the first die, and j is the outcome of the second die, with i, j ∈ {1, 2, 3, 4, 5, 6}.  

Let p(x) = P(X=x) be the probability mass function of X. 

p(2) =   

p(3) =   

p(4) =   

p(5) =   

p(6) =   

p(7) =   

p(8) =   

p(9) =   

p(10) =   

p(11) =   

p(12) =  

I actually have no clue how to do this. Any help would greatly be appreciated. Thanks!

Suppose we toss two fair dice. Let X = i+j, where i is the outcome of the first die, and j is the outcome of the second die, with i, j ∈ {1, 2, 3, 4, 5, 6}. 

Let p(x) = P(X=x) be the probability mass function of X.

p(2) =  

p(3) =  

p(4) =  

p(5) =  

p(6) =  

p(7) =  

p(8) =  

p(9) =  

p(10) =  

p(11) =  

p(12) =  

Let f′(x)=3−5x^2 be the derivative of a continuous function of f.

f is increasing for the interval(s): x=?

f is decreasing for the interval(s): x=?

Could you also write a short explanation so I can understand it?

Thank you!!

If a total of 1600 square centimeters of material is to be used to make a box with a square base and an open top, find the largest possible volume of such a box.

Could you also please show a bit of work so I can understand how to do the problem?

Thank you!!!

A rancher wants to fence in a rectangular area of 7000 square feet in a field and then divide the region in half with a fence down the middle parallel to one side. What is the smallest length of fencing that will be required to do this?

Could you please write out the two functions you used, at the least?

Thank you!!

A rancher wants to fence in a rectangular area of 7000 square feet in a field and then divide the region in half with a fence down the middle parallel to one side. What is the smallest length of fencing that will be required to do this?

Could you please write out the two functions you used, at the least?

Thank you!!

A rancher wants to fence in a rectangular area of 7000 square feet in a field and then divide the region in half with a fence down the middle parallel to one side. What is the smallest length of fencing that will be required to do this?

Could you please write out the two functions you used, at the least?

Thank you!!

I just need to make sure all my grammar is correct (conjugations, agreement, etc). Thanks!!

D’abord, Bennett est très amusant et il n’est pas sensible. Bennett est plus bavard que moi. Je ne parle jamais, mais il parle tout le temps. Par exemple, quand nous rencontrons une nouvelle personne, je suis plus timide que Bennett et il parle avec la personne. Je pense que Bennett est le plus bavard que je connaisse. Il est intelligent aussi; il aime la chimie et il parle l’espagnol couramment.

Deuxièmement, Bennett est très têtu. Il se dispute beaucoup et il l’aime. Par exemple, il aime les politiques, mais s’il y une personne que n’est pas d’accord avec son opinion, il se fâche et son opinion ne changera pas. Parfois, il est étourdi aussi. De temps en temps, il est tard pour les cours parce qu’il oublie à quelle heure ses cours commencent. Finalement, Bennett est plus radin que moi. Il garde son argent et je ne le garde pas. Il dépense l’argent rarement.

Enfin, Bennett est grand et musclé. Il a des cheveux bouclés et plus noires que moi et les yeux verts. De temps en temps, il a une barb quand il ne se rase pas parce qu’il est poilu. Il a aussi des sourcils mates et la peau blanche. Beaucoup de personnes pensent qu’il est méditerranée ou italien, mais il est allemand.

En conclusion, je m’entend bien avec Bennett. Je pense que c’est parce que nous sommes opposés. Nous aimons et n’aimons pas les mêmes choses. Il a été mon meilleur ami depuis le lycée.

A liquid has an enthalpy of vaporization of 23.5 kj/mol. At 20 degrees C, the vapor pressure if the liquid's vapor is 300 torr. Determine the normal boiling point of the liquid.

I know the answer is 48 degrees C but I have no clue how to do it. Please help!!

Thanks :)

What is the enthalpy change in J/g when water freezes at 0 degrees C? ΔHf for H2O is 1.435 kcal/mol.

I know the answer is -333 J/g but I have no clue how to do it. I've tried this problem for about 30 minutes now and I'm getting frustrated. Please help!