3.A company is studying the number of monthly absences among its 125 employees. The following probability distribution shows the likelihood that people were absent 0, 1, 2, 3, 4, or 5 days last month. What is the mean number of days absent? 0.40

0.72

1.00

2.5

4. The mean of a normal distribution is 425 pounds. The standard deviation is 14 pounds. What is the area between 421 pounds and the mean of 425 pounds? 0.2250

0.0563

0.1125

0.0788