The following table shows the relation between the price (x) and demand (y) of certain items. Price (x) 100 120 190 200 240 260 Demand (y) 20 15 16…
Class 12 Business Mathematics · 2081 · Solved Question with Answer
The following table shows the relation between the price (x) and demand (y) of certain items.
| Price (x) | 100 | 120 | 190 | 200 | 240 | 260 |
| Demand (y) | 20 | 15 | 16 | 12 | 14 | 13 |
a) Calculate the correlation coefficient by Karl Pearson's method.
b) The mean and variance of a binomial distribution are 7.5 and 1.875 respectively. Find P(2) and P(0).