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Which lossy method for audio compression is responsible for encoding the difference between two consecutive samples?

Which lossy method for audio compression is responsible for encoding the difference between two consecutive samples? Correct Answer Adaptive Differential Pulse Code modulation (ADPCM)

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Match the items of List - II with the items of List - I and select the code of correct matching List - I List - II (a) Chi-square Test (i) Testing the significance of the differences of the mean values among more than two sample groups. (b) ANOVA (F-test) (ii) Testing the goodness of fit of a distribution (c) Z - test (iii) Testing the significance of the difference of the mean values between two large sized samples (d) t - test (iv) Testing the significance of the difference of the mean values between two small sized samples when population standard deviation is not available  
Seven consecutive number starting from x which is an even number. Out of these seven if the difference between the sum of four consecutive odd numbers and the sum of three consecutive even numbers is 12. Find the average of next five consecutive odd numbers.
From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements:
P. The engineering stress-strain curves in tension and compression are identical.
Q. The true stress-true strain curve in compression is lower than the true stresstrue strain curve in tension due to Bauschinger effect.
R. The true stress-true strain curve in tension is above the corresponding engineering stress-strain, curve.
S. The true stress-true strain curve in tension and compression are identical.
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In discrete signal, if y = x and k>1 then ______ b) Some samples are added to x c) It has no effect on samples d) Samples will be increased with factor k
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Statement II To test the significance of the difference between means of two small sized samples when the parameter values of the standard deviations are given, Z-test can be applied.
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JPEG is a commonly used method of lossy compression for digital images. What is the full form of JPEG?