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Your math professor receives several student emails each day. The probability model shows the number of...

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Question

Basic Math

Your math professor receives several student emails each day.The probability model shows the number of emails your professorreceives from students in a given day.

# student emails012345
Probability0.100.100.200.200.300.10
  1. How many emails should your professor expect to receive daily?Round your result to the nearest hundredth.
  2. What is the standard deviation of the number of emails yourprofessor should expect to receive? Round to the nearesthundredth.
  3. If it takes your professor an average of 7 minutes to reply toeach email s/he receives, how many should your professor expect tospend responding to student emails in a given day?
  4. Your English professor expects the same mean number of emailswith the same standard deviation. What is the mean and standarddeviation of the difference in the number ofemails the professors will receive.

Mean:

Standard Deviation:

Answer & Explanation Solved by verified expert
3.8 Ratings (595 Votes)
First find the expected number of emails received from thegiven data To calculate the    See Answer
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