10-8. A 2048×2048×12-bit image is compressed at 10 to 1 compression

ratio. How many bits are present in the compressed image?

11-1. Suppose 3600 counts were accumulated for a sample counted for

10 minutes. Background contributed 784 counts over a counting

interval of 6 minutes.

a. Find the estimated standard deviation and the percent estimated

standard deviation of the sample count rate uncorrected

for background.

b. What are the estimated standard deviation and the percent

estimated standard deviation for the background count

rate?

c. What are the estimated standard deviation and the percent estimated

standard deviation of the sample count rate corrected

for background?