Answer:

Step-by-step explanation:
using the formula below, the central angle is 20° (bc 360-180-160=20)
radius is 14 (28/2=14)



Assuming that the probability of boys and girls is equal (in reality slightly more boys than girls are born), the probability is 1/2, simply because the older girl's gender is given and therefore not a part of the probability.
This question comes from the 'boy or girl paradox', a.k.a. the Mrs Smith Problem.
Answer:
1st quartile: 2.6
2nd quartile or median: 3.1
3rd quartile: 3.25
Step-by-step explanation:
The set of ordered pairs are 
Step-by-step explanation:
Given that the relation 
To find the set of ordered pairs, let us substitute the value for x in the relation 
For
,

The ordered pair is 
For
,

The ordered pair is 
For
,

The ordered pair is 
For
,

The ordered pair is 
For
,

The ordered pair is 
Thus, the set of ordered pairs is 