Question

The CAT scores of 60 students are summarized below: Class 40-50 50-60 60-70 70-80 80-90 90-100 Frequency 10 8 12 15 10 5 Calculate the sample mean, the sample variance and the standard deviation for the grouped data

Answer 1

Answer:

In the diagram, income is measured horizontally and consumption is measured vertically. ... “Thus the consumption function measures not only the amount spent on consumption but also the amount saved. This is because the propensity to save is merely the propensity not to consume.