Abstract
The first-order statistics (probability density function, characteristic function, probability of exceeding a specified value, first two moments) of the Jacobi elliptic functions cn(θ,k) and sn(θ,k) are evaluated when θ is a random variable uniformly distributed over the period T=4K(k). The resultant expressions reduced to those of the corresponding trignometric functions cos θ and sin θ as k→0. An application of the formal results is made to the holography of vibrating surfaces.