The variation with time 
of the output 
produced by a microphone is shown in the graph below.
The output is processed by a four-bit analogue-to-digital converter (ADC) that samples the output every 
. The first sample is taken at time 
and is shown in the table below.
Complete the table for the next five samples.
Explain whether the sampling frequency is adequate to enable detail of the output V to be reproduced.
