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Home Q & A Board Science-Related Homework Help Mathematics
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RENCEE72 RENCEE72
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6 years ago
The average number of calls received by a switchboard in a 30-minute period is 15.
 a. What is the probability that between 10:00 and 10:30 the switchboard will receive exactly 10 calls?
  b. What is the probability that between 10:00 and 10:30 the switchboard will receive more than 9 calls but fewer than 15 calls?
  c. What is the probability that between 10:00 and 10:30 the switchboard will receive fewer than 7 calls?
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lirpaprillirpapril
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6 years ago
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RENCEE72 Author
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6 years ago
Thanks for your help!!
Roselalo
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Yesterday
Good timing, thanks!
vanna2014
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2 hours ago
This calls for a celebration Person Raising Both Hands in Celebration
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