The table gives the probability distribution of the number of dvds sold per day at a music store. what is the probability of 5 or more dvds being sold on any given day?

number of dvds sold in a day

0-4

5-9

10-14

15-20

probability

0.1875

?

0.4375

0.125

a.
0.4375

b.
0.2525

c.
0.8125

d.
1.

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?