Probability Curve
★Exhibit Content: Normal distribution, probability ★Interaction: Mechanical interaction ★Operation: Rotate the pegboard and watch the curve formed by the falling balls. ★Exhibit Description: The exhibit consists of a display stand, a set of reversible pegboards, and several metal balls. Flip the pegboard, and the balls fall one by one, colliding with the pegs along the way, and finally land at the bottom, forming a curve that is high in the middle and low at both ends—this is the normal distribution curve. ★Scientific Principle: The exhibit vividly demonstrates the probability of random events. Flip the probability box, and the balls collide multiple times with the steel columns, ultimately falling into different compartments in varying numbers. We will find that the number of balls in the middle is large, while the number on both sides is small. This is because when a ball collides with each steel column, the probability of falling to either side is 1/2 each. The balls in the middle pass the fewest steel columns, so the number of balls falling into the middle compartment is the largest. The normal distribution, also known as the Gaussian distribution, is a probability distribution of great importance in mathematics, physics, engineering, and many other fields, and has significant influence in many aspects of statistics. If a random variable follows a probability distribution with a location parameter and a scale parameter, denoted as: then its probability density function is: The expected value or mean of the normal distribution equals the location parameter, which determines the position of the distribution; the square root of its variance or standard deviation equals the scale parameter, which determines the spread of the distribution. The probability density function curve of the normal distribution is bell-shaped, so it is often called the bell curve. The standard normal distribution we usually refer to is a normal distribution with a location parameter of 0 and a scale parameter of 1.
Options
- 0.7*0.7*1.0m 0.7*0.7*1.0mDimensions: 0.7*0.7*1.0m Brand: PopsciCat Model: PopsciCat-math-049 1. Materials: ① Display stand frame: 30 square tube, 2.0mm cold-rolled steel panel, surface painted ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction sign, graphic panel: 5mm acrylic UV printing ④ Balls: steel balls ⑤ Flip board bracket: stainless steel ⑥ Flip board: acrylic 2. Main configuration: None 3. Installation requirements: ① Energy requirement: None ② Installation base: Place directly ③ Entry passage: Door frame size (width×height) ≥0.7m×1.9m, continuous turning interval ≥1.8m ④ Maintenance access: None
★Exhibit Content: Normal distribution, probability ★Interaction: Mechanical interaction ★Operation: Rotate the pegboard and watch the curve formed by the falling balls. ★Exhibit Description: The exhibit consists of a display stand, a set of reversible pegboards, and several metal balls. Flip the pegboard, and the balls fall one by one, colliding with the pegs along the way, and finally land at the bottom, forming a curve that is high in the middle and low at both ends—this is the normal distribution curve. ★Scientific Principle: The exhibit vividly demonstrates the probability of random events. Flip the probability box, and the balls collide multiple times with the steel columns, ultimately falling into different compartments in varying numbers. We will find that the number of balls in the middle is large, while the number on both sides is small. This is because when a ball collides with each steel column, the probability of falling to either side is 1/2 each. The balls in the middle pass the fewest steel columns, so the number of balls falling into the middle compartment is the largest. The normal distribution, also known as the Gaussian distribution, is a probability distribution of great importance in mathematics, physics, engineering, and many other fields, and has significant influence in many aspects of statistics. If a random variable follows a probability distribution with a location parameter and a scale parameter, denoted as: then its probability density function is: The expected value or mean of the normal distribution equals the location parameter, which determines the position of the distribution; the square root of its variance or standard deviation equals the scale parameter, which determines the spread of the distribution. The probability density function curve of the normal distribution is bell-shaped, so it is often called the bell curve. The standard normal distribution we usually refer to is a normal distribution with a location parameter of 0 and a scale parameter of 1.
- 0.9*0.6*1.5m 0.9*0.6*1.5mDimensions: 0.9*0.6*1.5m Brand: PopsciCat Model: PopsciCat-math-050 1. Materials: ① Display stand frame: 30 square tube, 2.0mm cold-rolled steel panel, surface painted ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction sign, graphic panel: 5mm acrylic UV printing ④ Balls: steel balls ⑤ Flip board bracket: stainless steel ⑥ Flip board: acrylic 2. Main configuration: None 3. Installation requirements: ① Energy requirement: None ② Installation base: Place directly ③ Entry passage: Door frame size (width×height) ≥0.7m×1.9m, continuous turning interval ≥1.8m ④ Maintenance access: None
★Exhibit Content: Normal distribution, probability ★Interaction: Mechanical interaction ★Operation: Rotate the pegboard and watch the curve formed by the falling balls. ★Exhibit Description: The exhibit consists of a display stand, a set of reversible pegboards, and several metal balls. Flip the pegboard, and the balls fall one by one, colliding with the pegs along the way, and finally land at the bottom, forming a curve that is high in the middle and low at both ends—this is the normal distribution curve. ★Scientific Principle: The exhibit vividly demonstrates the probability of random events. Flip the probability box, and the balls collide multiple times with the steel columns, ultimately falling into different compartments in varying numbers. We will find that the number of balls in the middle is large, while the number on both sides is small. This is because when a ball collides with each steel column, the probability of falling to either side is 1/2 each. The balls in the middle pass the fewest steel columns, so the number of balls falling into the middle compartment is the largest. The normal distribution, also known as the Gaussian distribution, is a probability distribution of great importance in mathematics, physics, engineering, and many other fields, and has significant influence in many aspects of statistics. If a random variable follows a probability distribution with a location parameter and a scale parameter, denoted as: then its probability density function is: The expected value or mean of the normal distribution equals the location parameter, which determines the position of the distribution; the square root of its variance or standard deviation equals the scale parameter, which determines the spread of the distribution. The probability density function curve of the normal distribution is bell-shaped, so it is often called the bell curve. The standard normal distribution we usually refer to is a normal distribution with a location parameter of 0 and a scale parameter of 1.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★