Ateacher calculates the class average on an exam for each of his four classes and finds that the means are equal. which statement below would lead to believe that this teacher was most with the exam scores in his period 1 class?
a. the scores for period 1 had the lowest median.
b. the scores for period 1 had the highest median.
c. the scores for period 1 had the lowest standard deviation.
d. the scores for period 1 had the lowest iqr.

Correct C) The scores for period 1 had the lowest standard deviation.

I just did the assignment, trust me.

with btw u said 100pts but it clearly says

i answerd and just got 10pts

no hate

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