Mathematics, 03.12.2019 03:31 rickimmorgan
The number of messages sent to a computer bulletin board is a poisson random variable with a mean of 5 messages per hour.
(a) what is the probability that 5 messages are received in 1 hour?
(b) what is the probability that 10 messages are received in 1.5 hours?
(c) what is the probability that the time between two consecutive received messages exceeds 30 minutes?
(d) find the expected value and the standard deviation of the number of messages received daily.
Answers: 3
Another question on Mathematics
Mathematics, 22.06.2019 01:00
Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units
Answers: 3
Mathematics, 22.06.2019 01:30
What is the surface area of a cube with the volume of 729 ft?
Answers: 1
Mathematics, 22.06.2019 02:00
The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams
Answers: 3
Mathematics, 22.06.2019 02:00
The first term of a sequence is -12. the recursive formula for the sequence is an = an-1 + 9. what are the next 3 terms in the sequence? a) -3, -15, -27 b) -3, 6, 15 c) -3, -6, -3 d) -3, -6, 3
Answers: 2
You know the right answer?
The number of messages sent to a computer bulletin board is a poisson random variable with a mean of...
Questions
Chemistry, 29.03.2021 22:00
Mathematics, 29.03.2021 22:00
Mathematics, 29.03.2021 22:00
Spanish, 29.03.2021 22:00
Social Studies, 29.03.2021 22:00
History, 29.03.2021 22:00
Advanced Placement (AP), 29.03.2021 22:00
English, 29.03.2021 22:00
Chemistry, 29.03.2021 22:00
Mathematics, 29.03.2021 22:00
