Mathematical statistics presentation device

The utility model relates to a mathematical statistics presentation device, include: the casing, its inside top is installed and is stored up the ball groove, stores up the ball inslot and is equipped with a plurality of bobbles, the marble device, it is installed at casing left side top, the marble device with store up the ball groove and be connected, the marble device includes and draws handle, pull rod, spring and shell fragment, the falling sphere groove, it is installed in the bottom of casing, and the falling sphere inslot evenly is equipped with 10 round holes, and infrared sensor is equipped with to every round hole liam, the shelves pole, it is installed perpendicularly on housing face, and the right side at housing face is evenly arranged to a plurality of grades of poles, display device, it is installed at casing left side middle part, processing apparatus, it is installed in the inside of casing, and infrared sensor and display device all are connected with processing apparatus. The beneficial ef