Apply arithmetic mean of frequency distribution to find the expected value of a random variable The expected value of discrete random variable as summation of product of discrete random variable by ...

Department of Teacher Education, The University of Texas at El Paso, El Paso, TX, United States Spatial reasoning is critical to early mathematics learning, but it is unclear how early elementary ...

A growing body of evidence suggests that the ways in which parents and preschool children interact in terms of home-based mathematics activities (i.e., the home mathematics environment; HME) is ...