x −4 −3 −2 −1 0 P(X=x) 0.2 0.1 0.3 0.2 0.2
Step 1 of 5: Find the expected value E(X). Round your answer to one decimal place.
Step 2 of 5:
Find the variance. Round your answer to one decimal place.
Step 3 of 5:
Find the standard deviation. Round your answer to one decimal place.
Step 4 of 5:
Find the value of P(X>−1)P(X>−1). Round your answer to one decimal place.
Step 5 of 5:
Find the value of P(X≤−1)P(X≤−1). Round your answer to one decimal place.
In: Statistics and Probability
3/26
1 mo 0.01
6 mo 0.04
1 yr 0.13
2 yr 0.3
3 yr 0.36
5 yr 0.51
3/27
1 mo 0.01
6 mo 0.02
1 yr 0.11
2 yr 0.25
3 yr 0.3
5 yr 0.41
1. It is March 26 and you hold a $1mm (market value) long position in the 1-yr zero-coupon bond. Using modied durations, determine how much of the 5-yr zero-coupon bond you need to short so that your portfolio remains approximately unchanged if the 1-yr and 5-yr zero rates move in parallel.
2. What would the change in your portfolio value be if both the 1-yr rate and the 5-yr rate go up by 2 basis points?
3. What would the change in your portfolio value be if both the 1-yr rate and the 5-yr rate go down by 2 basis points?
4. What would the change in your portfolio value be if the 1-yr rate goes down by 2 basis points but the 5-yr rate stays the same?
5. What actually happens the following day? Calculate the value of your portfolio. Why did your portfolio value change from before?
In: Finance
Consider the following data: x 4 5 6 7 8 P(X=x) 0.2 0.2 0.1 0.2 0.3
Step 2 of 5: Find the variance. Round your answer to one decimal place.
Step 3 of 5: Find the standard deviation. Round your answer to one decimal place.
Step 4 of 5: Find the value of P(X<7). Round your answer to one decimal place
Step 5 of 5:Find the value of P(X≥7). Round your answer to one decimal place.
In: Statistics and Probability
Income
|
Person |
(Yi) |
F(Yi) |
| 1 | 79.6 | 0.1 |
| 2 | 138.7 | 0.2 |
| 3 |
173.1 |
0.3 |
| 4 |
187.8 |
0.4 |
| 5 |
201.3 |
0.5 |
| 6 |
226.6 |
0.6 |
| 7 |
247.4 |
0.7 |
| 8 |
289.2 |
0.8 |
| 9 |
322.8 |
0.9 |
| 10 |
587.9 |
1 |
A. The mean or average of the ranked above data for a village in Peru is:
a. $245.44
b. $345.44
c. $123.44
d. $200.56
B. Suppose that the covariance between the ranked income and the cumulative distribution of income is 33.24. The Gini coefficient for this village is approximately:
a. .212
b. .223
c. .271
d. .281
In: Math
In: Accounting
Question 1: Why are costs so important for a perfectly competitive firm?
Question 2: Suppose you own and manage a hotel that has 100 rooms. Your total costs (including all staff wages, utilities, insurance, lease payments, etc.) are $10,000/night, such that your average total costs per room are $100 per night. You work with an online bidding Web site (like Priceline) and receive a bid of $70 for a single night in the following week. You currently have several vacant rooms available on this night. Should you accept this bid? Briefly explain on what factors this decision would depend.
In: Economics
examining Porter's Five Forces as a tool for looking at the pressures on profits. Specifically, you will be looking at defining Porter's Five Forces and applying this tool to the market structures and pressures on profits of a chosen group of firms •Chose one of the following groups and use Porter's Five Forces to analyze the pressures on profits for your chosen group's firms. ◦Group 1: the accommodations industry (e.g., Hilton, Marriott Bonvoy, InterContintental Hotel Group). ◦Group 2: the wireless telecommunications industry (e.g., Verizon, AT&T, T-Mobile). •If you want to dig deeper into how one of the firms views the challenges it faces, you might want to look at the firm's investor page.
In: Economics
An investor is reviewing two proposals, assuming similar risk profiles and a 14% required return, which one should the investor buy? Why?
Lee Vista:
Purchase Price: $464,000
Cash flows from operations:
Year 1 $48,000
Year 2 $49,440
Year 3 $50,923
Year 4 $52,451
Year 5 $54,025
Cash flow from sale on year 5 $560,000
Colony Park:
Purchase Price: $500,000
Cash flows from operations:
Year 1 $56,000
Year 2 $57,400
Year 3 $58,835
Year 4 $60,306
Year 5 $61,814
Cash flow from sale on year 5 $597,000
In: Finance
Where are the deer? Random samples of square-kilometer plots were taken in different ecological locations of a national park. The deer counts per square kilometer were recorded and are shown in the following table.
| Mountain Brush | Sagebrush Grassland | Pinon Juniper |
| 30 | 15 | 4 |
| 30 | 57 | 9 |
| 20 | 21 | 8 |
| 25 | 23 | 4 |
A) Find SSTOT, SSBET, and SSW and check that SSTOT = SSBET + SSW. (Use 3 decimal places.)
B) Find d.f.BET, d.f.W, MSBET, and MSW. (Use 4 decimal places for MSBET, and MSW.)
C) Find the value of the sample F statistic. (Use 2 decimal places.)
In: Statistics and Probability
Margot is walking in a straight line from a point 40 feet due east of a statue in a park toward a point 34 feet due north of the statue. She walks at a constant speed of 4 feet per second.
(a) Write parametric equations for Margot's position t seconds after she starts walking. (Round your coefficients to four decimal places as needed.)
(b) Write an expression for the distance from Margot's position to the statue at time t. (Round your coefficients to four decimal places as needed.)
(c) Find the times when Margot is 36 feet from the statue. (Round your answers to two decimal places)
In: Math