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Ybynlyn2

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....0 C Spire LTE 67% 12:58 PM Ims.grantham.edu W2 Written Assignment "Week 2 Assignment" Business Statistics Week 2 Assignment Learning Center Library Question 1 1. Compute the weighted mean for the following data. B-104 28 Xi Weight (w) 19 12 17 30 14 28 13 10 18 10 gl 15.4 p 2047=2 Question 2 1. If P(A) = 0.50, P(B) = 0.40, and P(AUB) = 0.88, then P(BA) = (a+b Tri R. Question 3 Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at random and given to Person A. A tablet is then selected and given to Person B. What is the probability that +2abib 1. Person A was given a vitamin tablet? 2. Person B was given a sugar tablet given that Person A was given a vitamin tablet? 3. neither was given vitamin tablets? 4. both were given vitamin tablets? 5. exactly one person was given a vitamin tablet? 6. Person A was given a sugar tablet and Person B was given a vitamin tablet? 7. Person A was given a vitamin tablet and Person B was given a sugar tablet? Maximum Points 40 20 Grading Criteria Assignments Meets or exceeds established assignment criteria Demonstrates an understanding of lesson concepts Clearly presents well-reasoned ideas and concepts Uses proper mechanics, punctuation, sentence structure, and spelling Total 30 10 100 Copyright Grantham University. 2016 All Rights Reserved. W2 Project Assignment "Project Week 2" Business Statistics Project Week 2 Learning Center Library For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadheet. Download it here. B-104 28 Using the ROI data set: 1. For each of the 2 majors calculate the mean, median, minimum, maximum, range, and standard deviation for the columns 'Cost' and '30- Year RỒI. 2. By hand or with Excel, for each of the 2 majors calculate the probability that a college picked from the column for 'School Type' is 'Private! 3. By hand or with Excel, for each of the 2 majors find the probability that a college with the School Type' Private' has a '30-Year ROI' between $1,500,000 and $1,800,000. gle -15 13. 'p 20+7=2 Grading Criteria Assignments Meets or exceeds established assignment criteria Demonstrates an understanding of lesson concepts Clearly presents well-reasoned ideas and concepts Maximum Points 40 20 30 (a+ Tril R. mechanics Punctuation
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Explanation & Answer

Hellooo. Here is the work

Question 1
Compute the weighted mean for the following data
Xi

weight (wi)

19

12

17

30

14

28

13

10

18

10

19 x12 = 228
17 x 30 =510
14 x 28 = 392
13 x10 = 130
18 x10 =180
Total Xi = 1440 /Total (wi) = 90, 1440/90 = 16 answer is 16

Questions 2
If P(A) = 0.50, P(B) = 0.40 and P(A U B) = 0.88 then P(B|A) =
P(A ∩ B) = P(A) + P(B) - P(A U B) = 0.5 + 0.4 - 0.88 = 0.02
Hence
P(B|A) = P(A and B) / P(A) = 0.02 / 0.5 = 0.04
Alternatively,

P(A U B) = P(A) + P(B) - P(A ∩ B)
0.88 = 0.5+0.4- P(A ∩ B)
Or, P(A ∩ B)= 0.5+0.4 - 0.88 = 0.02
P(B/A) = P(A ∩ B)/P(A)
= 0.02/...


Anonymous
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