Gracie's grandmother gave her 40 stamps. Then, each month Gracie adds 30 stamps to her collection.
Gracie's Stamp Collection
у
120
73.2)
100
(2, 100)
80
Number of Stamps
60
(1.70)
40
10.40
20
Х
0
2 4 6 8 10 12
Time (months)
Part A
How many stamps does Gracie have after 3 months?
Enter your answer in the box.
stamps
Part B
What does the point (2,100) represent on the graph?
O A. The number of months since Gracie began adding to her stamp collection.

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?