Question

In: Statistics and Probability

Please answer the following questions and show all work and make sure I can read your...

Please answer the following questions and show all work and make sure I can read your writing please.

1) Ethan went on a 10 day fishing trip. The number of small mouth bass caught and released by Ethan each day was as follows.

Day 1 2 3 4 5 6 7 8 9 10

# of Fish 9 24 8 9 5 8 9 10 8 10

A. Find the mean, median, and mode

B. Find the range, variance, and sample standard deviation

2) A multiple-choice test consists of 20 questions. A student has to answer at least 9 questions correctly to pass the test. Use BINOMIAL DISTRIBUTION to find the probability that a student at random will pass the test?

Expert Solution

1. A) Mean, Median, Mode;

b) Range = Maximum value - Minimum value = 24 - 5 = 19

2) If each question has 2 options then p = 1/2=0.5, n = 20

The probability that a student at random will pass the test is

If each question has 4 options then p = 1/4=0.25, n = 20

The probability that a student at random will pass the test is

orchestra answered 2 years ago

Read each question carefully, make sure to answer all questions are answered and show your work:...

Read each question carefully, make sure to answer all questions are answered and show your work: 5. Nast stores has derived the following consumer credit-scoring model after years of data collect Y=(0.20 x Employment) + (0.4 x Homeowner) + (0.3 x Cards) Employment = 1 if employed part-time, and 0 if unemployed Cards= 1 if presently has 1-5 credit cards, 0 otherwise Nast determines that a score of at least 0.70 indicates a very good credit risk, and it extends...

( PLEASE SHOW ALL YOUR WORK). I MPORTANT NOTE: Make sure you do the following: -State...

( PLEASE SHOW ALL YOUR WORK). I MPORTANT NOTE: Make sure you do the following: -State Ho and Ha using notation for each hypothesis test conducted. -Use α= 0.05 for all hypothesis tests conducted. -Explain all results obtained for both hypothesis tests and confidence intervals. You will need your ticker code (company abbreviation) for stock prices for this question. Use your ticker code to obtain the closing prices for the following two time periods to obtain two data sets: March...

can someone please answer for me that quaestions. please make sure that i understand your work...

can someone please answer for me that quaestions. please make sure that i understand your work and handwriting. thank you _____________________________________________________ 1. We will sketch some quadrics, but in order to make sure our graphs have some accuracy, we will project the surfaces onto the 3 coordinate planes. For each equation, draw four separate graphs for the surface S: i. the projection of S onto the xy-plane, ii. the projection of S onto the xz-plane, iii. the projection of S...

Answer the following questions. Show all work leading to your answer. On a network with an...

Answer the following questions. Show all work leading to your answer. On a network with an IP address of 140.133.28.72 and a subnet mask of 255.248.0.0, what is the network ID? You have decided to create 254 subnets on your Class B network. What subnet mask will you use to accomplish this? What is the maximum number of hosts you can assign to any single subnet? Your workstation's IP address is 10.35.88.12, and your supervisor's workstation's IP address is 10.35.91.4....

Hello, please answer all 3 questions, if possible! :) I will make sure to add 5...

Hello, please answer all 3 questions, if possible! :) I will make sure to add 5 star rating! 29. Which of the following commands may be used to display boot error messages? (Choose all that apply.) a. dmesg | less b. less /var/log/boot c. less /var/log/wtmp d. less /var/log/boot.log 31. Which of the following can be used to obtain detailed performance statistics regarding virtual memory usage? (Choose all that apply.) a. Files stored within the /proc directory. b. The iostat...

Please make sure to complete all parts of the question and to show all work used...

Please make sure to complete all parts of the question and to show all work used to compute the answer so I can see how the answer was found. A five-year annuity of 10 $5,230 semiannual payments will begin nine years from now, with the first payment coming nine and a half years from now. If the discount rate is 10 percent compounded monthly, what is the value of this annuity five years from now? What is the value three...

THIS IS EXAM REVIEW, so please make sure to show the work and make sure the...

THIS IS EXAM REVIEW, so please make sure to show the work and make sure the work is correct. In all tests of hypothesis use the 5% level of significance unless told otherwise. In all confidence interval problems use 95% confidence unless told otherwise. SHOW YOUR WORK. 2. Test scores for a mathematics course have a normal distribution with a mean of 76 and a standard deviation of 12. a.What proportion of scores will be between 70 and 90? b....

I need this computer typed so I can read it, and please show work. thanks! Your...

I need this computer typed so I can read it, and please show work. thanks! Your current salary is $100,000 per year. Every year you save 10 percent of your salary and invest it in a 401K plan which provides you a guaranteed return of 6 percent per year. Assume the deposits will be made at the end of each year for the next 40 years. How much will you have at the end of 40 years if your salary...

Use the following information to answer the questions in this quiz. Please show your work by...

Use the following information to answer the questions in this quiz. Please show your work by submitting a Word, Excel, or JPEG file in the "Project 2 Drop Box". INFORMATION OLD MACHINE: Original Purchase Price $ 550,000.00 Original Life 10 YEARS Remaining Life 5 YEARS Straight line depreciation in use Salvage Value $ 50,000.00 Current Fair Market Value $ 260,000.00 INFORMATION NEW MACHINE A: Purchase Price $895,000.00 Estimated Life 5 YEARS Use Straight Line Depreciation Method Estimated Salvage Value...

Please read carefully. You must show all of your work for full credit. A correct answer...

Please read carefully. You must show all of your work for full credit. A correct answer with no work shown is worth no points, but an incorrect or partial answer with some work shown may be worth partial credit. Include explanations in each step. Correct format for writing answers (using symbols and letters). Question: What is the probability that fewer than 120 agreed? Answer: P (x < 120) I. An orange juice producer buys oranges from a large orange grove...