In a certain mathematics class, the probabilities have been empirically determined for various numbers of absentees on any given day. These values are shown in the table below. Find the expected number of absentees on a given day. Number absent Probability 0 1 2 3 0.02 0.04 0.2 0.23 The expected number of absentees on a given day is (Round to two decimal places as needed.) 4 5 0.31 0.1 6 0.1

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 24E
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In a certain mathematics class, the probabilities have been empirically determined for various numbers of absentees on
any given day. These values are shown in the table below. Find the expected number of absentees on a given day.
Number absent
Probability
0
0.02
1 2 3
0.04 0.2 0.23
The expected number of absentees on a given day is
(Round to two decimal places as needed.)
4 5 6
0.31
0.1
0.1
Transcribed Image Text:In a certain mathematics class, the probabilities have been empirically determined for various numbers of absentees on any given day. These values are shown in the table below. Find the expected number of absentees on a given day. Number absent Probability 0 0.02 1 2 3 0.04 0.2 0.23 The expected number of absentees on a given day is (Round to two decimal places as needed.) 4 5 6 0.31 0.1 0.1
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