Question
In: Statistics and Probability
A teacher is currently teaching two statistics classes, one at 8:00 A.M. and the other at...
A teacher is currently teaching two statistics classes, one at 8:00 A.M. and the other at 10:00 A.M. The accompanying table summarizes the attendance records by showing the probability of the number of absent students per class. Complete parts a and b.
Probability
Number of Absent Students 8 A.M. Class 10 A.M. Class
|
0 |
0.06 | 0.11 |
| 1 | 0.15 | 0.46 |
| 2 | 0.34 | 0.21 |
| 3 | 0.15 | 0.11 |
| 4 | 0.22 | 0.06 |
| 5 | 0.08 | 0.05 |
a. Calculate the mean number of students absent for each class.
1. Calculate the mean number of students absent from the 8:00 A.M. class.
2. Calculate the mean number of students absent from the 10:00 A.M. class.
b) Calculate the standard deviation for the number of students absent for each class.
1. Calculate the standard deviation number of students absent from the 8:00 A.M. class.
2. Calculate the standard deviation number of students absent from the 10:00 A.M. class.
Solutions
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