Ms. Belk made this box and whisker plot after a quiz she gave. Which statement is

NOT true about the data in the plot?

(answer choices)

A. the interquartile range is 20

B. the upper extreme is 95

C. the lower quartile is 65

D. the median score is 75
any scams or external websites will be reported.

D is incorrect

Step-by-step explanation:

the median score is 70

c

step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.