The head librarian at a public library releases a report. the report states that visitors to the library want the library to open one hour earlier on saturdays. the report was based on a survey of the first 50 visitors to the library on a recent saturday. participants were asked the question, "do you think the library should open one hour earlier on saturdays? " select all statements that correctly evaluate the report.
a the sample is biased because it does not represent the population.
b. the question is biased toward a no response.
c. the sample is not biased.
d. the question is not biased.
e. the question is biased toward a yes response.

A and E are correct.

Step-by-step explanation:

The correct statements are :

A. The sample is biased because it does not represent the population.

E. The question is biased toward a Yes response.

Explanation for A:

This is a biased sample as all the members were not included in the study. Only first 50 people were asked out of possible hundreds of people who go to the library. So, this option is true. Only 50 people does not represent a population.

Explanation for E:

It is obvious that the people who are the first to come to the library are very much keen to come early, so they will definitely say yes to the question. So, the option holds true to the fact that question is biased towards a yes response.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: