Probabilities and Coincidence of Shared Birthdays Use a calculator to solve this exercise. Round probabilities to three decimal places. a. If two people are selected at random, the probability that they do not have the same birthday (day and month) is 365 365 . 364 365 . Explain why this is so. (Ignore leap years and assume 365 days in a year.) b. If three people are selected at random, find the probability that they all have different birthdays. c. If three people are selected at random, find the probability that at least two of them have the same birthday. d. If 20 people are selected at random, find the probability that at least 2 of them have the same birthday. e. Show that if 23 people are selected at random, the probability that at least 2 of them have the same birthday is greater than $$.
Probabilities and Coincidence of Shared Birthdays Use a calculator to solve this exercise. Round probabilities to three decimal places. a. If two people are selected at random, the probability that they do not have the same birthday (day and month) is 365 365 . 364 365 . Explain why this is so. (Ignore leap years and assume 365 days in a year.) b. If three people are selected at random, find the probability that they all have different birthdays. c. If three people are selected at random, find the probability that at least two of them have the same birthday. d. If 20 people are selected at random, find the probability that at least 2 of them have the same birthday. e. Show that if 23 people are selected at random, the probability that at least 2 of them have the same birthday is greater than $$.
Solution Summary: The author calculates the probability of three people selected at random having different birthdays.
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Multiply the following Matrices together:
[77-4
A =
36
Marked out of
-5 -5
5.00
B =
3
5
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-6
-7
AB
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What is the angle between the two vectors: v1 = 12i + 9j and v2 = 9i + 12j
[Write your answer in degrees between 0 and 360]
[Provide your answer as an integer number (no fraction). For a decimal number, round your
answer to 2 decimal places]
Answer:
dw
z = Find using direct
dt
If w = + x = (cost), y = (sint), z=
substitution and chain rule methods.
Elementary and Intermediate Algebra: Concepts and Applications (7th Edition)
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