If a₁, a₂, a₃, …, a₉ are in GP, then what is the value of the following determinant?
    | ln a₁ ln a₂ ln a₃ |
    | ln a₄ ln a₅ ln a₆ |
    | ln a₇ ln a₈ ln a₉ |

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

An urn contains one black ball and one green ball. A second urn contains one…

An urn contains one black ball and one green ball. A second urn contains one…

What is the most probable number of successes in 10 trials with probability of success…