On a recent survey, 400 working Americans were asked “How many days do you feel stressed or anxious at work?”
Number of Days |
Frequency |
0 |
60 |
1 |
35 |
2 |
15 |
3 |
120 |
4 |
70 |
5 |
100 |
a) What is the probability that a randomly selected person feels stressed at work three days per week?
b) Conditional on feeling stressed at least once per week, what is the probability that a randomly selected person is stressed more than three days per week?
c) What is the 50th percentile (median) response in the sample?
d) Find the sample mean, .
e) Find the sample standard deviation,
Get Answers For Free
Most questions answered within 1 hours.