Alake tahoe community college instructor is interested in the mean number of days lake tahoe community college math students are absent from class during a quarter. consider the following. x = number of days a lake tahoe community college math student is absent in this case, x is an example of which of the following?

a. variable
b. population
c. statistic
d. data

a. variable

Step-by-step explanation:

X = number of days a Lake Tahoe Community College math student is absent

X is a random variable.

A random variable is a variable whose value is a numerical outcome of a random phenomenon.

A random variable's possible values might represent the possible outcomes of a yet-to-be-performed experiment.

Random variables are often denoted with  capital letter s and they can be discrete or continuous.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places