Random variable is discrete or continuous
Decide if the following random variable is discrete or continuous. Explain your reasoning a) The number of hours spent sleeping each day b) The number of fish caught during a fishing tournament.
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A pendulum is made of a uniform stick of length L. It is allowed to swing in a vertical plane. Where should the pivot be placed on the stick so that the frequency of (small) oscillations is maximum?
Suppose 550 g of aluminum which has been heated to 150 C is added to 100 g of water which is at a temperature of 25 C. What is the equilibrium temperature for this mixture?
How many electrons must be removed from each of two 4.3-kg copper spheres to make the electric force of repulsion between them equal in magnitude to the gravitational attraction between them?
An infinitely sharp zone of solute is placed at the center of acolumn at time t = 0. After diffusion for time t1, the standard deviation of the Gaussian band is 1.0mm
Two compounds with partition coefficients of 15 and 18 are to beseparated on a column with Vm/Vs = 3.0 andtm=1 min. calculate the number of theoretical plates needed to produce a resolution of 1.5.
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How many possible y components are there? Determine the equation of the streamline for the simplest y component of velocity. Plot the streamlines.
A gas evolved during the fermentation of sugarwas collected. After purification its volume was found to be25.0 L at 22.5°C and 702 mmHg. How many grams of gas were collected?
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Approaching a new social situation is similar to solving a cognitive problem. Children approaching a group of peers need to understand the others' communication
Children's goals in social interactions Children's goals affect their strategies in social situations, and this, too, is related to their peer status
The step-by-step social information processing approach may be a better model for encounters in new situations than in familiar situations
As in other areas of development, temperament interacts with experience to pre dict peer status.
A small number of children and adolescents who are perceived to be popular, however, display a mix of positive and negative behaviors
Question: Identify and distinguish between positive and negative reinforcement contingencies.