Aparameter is defined as the a. true value of the null hypothesis b. true value of a variable c. estimate of a variable, as determined through a sample d. estimate of the population parameter e. estimated value of a construct

 The answer is (c) estimate of a variable, as determined through a sample.

Step-by-step explanation: We are given four different options out of which one gives the perfect definition of a parameter.

In mathematics, a parameter is defined as a constant  or a variable in a function that determines a particular form of the function but not its general form. For example,  f(x) = k x, where 'k' determines only the gradient of the line described by f(x).  

In statistics, a parameter is defined as a variable that enters in the mathematical form of a distribution such that the possible values of the variable correspond to different distributions.

Thus, the correct option is (c) estimate of a variable, as determined through a sample.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

step-by-step explanation:

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