In a binary PCM system, the output signal-to-quantizing noise ratio is to be held to a minimum of 40dB. Determine the number of quantizing levels L.

a) click on any cells in the range of data

b) click the data

c) click sort& filter group, click sort

d) select the column to sort by and then select a sort order

e) select the next column to sort by and select the sort order

f) click ok