1.Focus your lede on how people are affected.
You will be graded based on the following:
Your lede must be 35 words
...
de must be 35 words or less and one sentence. (10 pts.)
Include the who, what, when, where and possibly the why and how in a one-sentence paragraph (a nut graph, or second one-sentence paragraph, can be used to explain the why and how if needed) (10 pts.)
The most important information should come in the first 10 to 12 words (10 pts.)
Write in active voice (10 pts.)
Attribute the information (10 pts.)
Use correct AP style (-2 pts for each AP style or grammar error).
Here is the information for your lede:
#2 - A man was doused with rubbing alcohol and set on fire Saturday because he ate the wrong Easter bunny. Irvine Police said a woman was angry because Paul Carter, 62, ate her chocolate Easter bunny. The man, who is confined to a wheelchair and has cancer, was eating the bunny at the Eastern Hills Nursing Home. He was taken to the University of California Irvine Burn Center with third-degree burns, police spokesman Milton Burel said.
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2.1. Choose some var columns as features. Explain why you choose those columns. It can be common sense, or statistics.
2.
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, or statistics.
2. Be careful with those missing data. They can be empty string, -1, -98, -99, etc. You will need to check the data and var dictionary to make your best judgement.
2. Use those selected columns to predict the "loan_default" column. You will try 3 machine learning algorithms
* Logistic regression
* KNN
* Naive Bayes Classifier
3. For each algorithm, you should select features and fit the model, then predict and evaluate.
4. Try different techniques to improve the model score. You can choose different columns, transform data and normalize data. Show your improvements.
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3.a) Carbon tetrachloride is an organic compound with the chemical formula CCl4. It is a
colorless liquid with a “sweet” smell.
i.
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quid with a “sweet” smell.
i. Using the ground state electron configuration and excited state electron
configuration explain the hybridization of the central Carbon (C) atom. (7 Marks)
ii. Identify the orbitals that overlap to form the C-Cl bond. Draw a diagram to show
the orbital overlap. (3 Marks)
iii. What is the bond angle of CCl4? (1 Mark)
b) Consider a Fluorine atom (F) and a Fluorine anion (F-). Which of these two species would
you expect to have a larger radius? Explain your answer. (5 Marks)
c) Explain why the first ionization energy of Aluminum (Al) is less than that of Magnesium
(Mg). (4 Marks)
d) Assume the atom Oxygen(O) can form both cationic(O+) and anionic(O-) species. Place
the following species in order of increasing first ionization energy, starting with the lowest.
O+, O, O-
(5 Marks)
4.
a) Sea water contains roughly 28.0 g of NaCl per liter. (NaCl molar mass = 58.44 gmol-1).
i. Calculate the number of moles of NaCl in a liter of sea water. (2 Marks)
ii. Calculate the molarity of NaCl in sea water. (4 Marks)
iii. Calculate the mass by volume percent (W/V) of NaCl in sea water. (4 Marks)
Lowest first
ionization energy
…………………
…..
Intermediate
ionization energy
…………………
…..
Highest first
ionization energy
…………………
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6.The unit price of market goods is $1. Each person has 8 hours to work each day.
Another couple, Sylvan and
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van and Alex, have the same productivities: Sylvan is identical to Rajan, while Alex
and Esther are identical.
Esther and Rajan both engage in market work. Sylvan works full time at home, so only Alex works in the
market.
a) Given this information, which couple has the higher opportunity cost of home produced goods?
Explain how you determined this. You can add a diagram if that helps, but you are not required
to include one.
b) Can you determine which couple has the higher utility? Explain why or why not.
Suppose now that value of market production for both Alex and Esther increased to $12/per hour.
c) Explain the change in the household joint production possibility frontier generated by this
change.
d) Explain what would happen to each couple’s choice of both household and market produced
goods, using an analysis by means of income and substitution effects.
e) What changes in time allocation for each couple that would be necessary to produce and
consume this new bundle? Briefly explain your reasoning.
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