Question 4 Multiple Choice Worth 4 points)
(05.07 LC)
The table shows the age of some participants in a quiz competition and the number of questions they could answer correctly:
Age (years) (x)
15 21 17 22 16 19 18
Number of questions they could answer (y) 17 17 17 17 17 17 17
What is the correlation coefficient for the data, and what does it represent?
0; it represents no correlation between x and y
1; it represents a linear positive correlation between x and y
-1; it represents a linear negative correlation between x and y
1; it represents a linear negative correlation between x and y

john got lost so he didn't know what to do and it was crazy because he didn't except it

step-by-step explanation:

123123 step byt step

(23*2)-12=x     x=34

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.