The total number of hours, in units of 100 hours, that a family runs a vacuum cleaner over a period of one year is a random variable X having the density function given in Exercise 4.13 on page 117. Find the variance of X.

answer:Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?

Step-by-step explanation:Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?Which expression is equivalent to −578?

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

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i googled it and this is what i got i don't know how it is. sorry.

a

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