If there are 25 values in a data set in order from smallest to largest, what is the third quartile of the data set?
a. the mean of the 22nd and 23rd values
b. the mean of the 20th and 21st values
c. the mean of the 19th and 20th values
d. the mean of the 21st and 22nd values

The answer is 'The mean of the 19th and 20th values'. - Apex

Step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.