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A homeowner has installed a new energy-efficient furnace.It is estimated that over a year the new furnace will reduce energy costs by an amount that can be regarded as a random variable with a mean of $265 and standard deviation of $55.Stating any assumptions you need to make,find the mean and standard deviation of the total energy costs reductions over a period of 5 years.
Object Permanence
Object Permanence is the cognitive understanding that objects continue to exist even when they cannot be seen, typically developed during early childhood.
Deferred Imitation
The ability to replicate a behavior or action after a delay or period in which the original action was not continuously observed.
Unique Smell
A distinctive odor that is particular to an individual or thing, making it recognizable.
Primary Circular Reactions
The repetition of actions that first occurred by chance and that focus on the infant’s own body.
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