Need assignment done | Statistics homework help

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Business Statistics 

Question 1

  1. Compute       the weighted mean for the following data.

https://content.grantham.edu/at/BA215/2015/wk-2-assignment-image-1.png

Question 2

  1. If       P(A) = 0.50, P(B) = 0.40, and P(A ∪ B) = 0.88, then P(B | A) =

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

  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?
  • For      these project assignments throughout the course you will need to reference      the data in the ROI Excel spreadsheet. Download it here.

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  and 30-Year  ROI.        
  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 0-Year ROI between       $1,500,000 and $1,800,000.
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