Answer:
B
Step-by-step explanation:
Create a a system of 2 equations: 2x + y = 27 and 2y + x = 9, with x being the first number and y being the second. solve for the two variables and you'll get the first number is 15 and the second is -3.
Let us calculate the median; the 6th observation is 20, so it is 20. We need the 6th observation so that out of the 11 observations we have 5 above the median and 5 below (or equal). We also have that then Q1 is the median of the lowest 5 observations, hence 19 (14,16,19,19,20, the 3rd observation is 19). Similarly, we get that the median for the upper half of the observations, Q3 namely, is 22 (21,21,22,22,23, the 3rd observation is 22). Thus, the interquartile range is 3=Q3-Q1. According to our calculations, all observations are wrong.
Answer:
2
Step-by-step explanation:all of them can be divided by 2 and it is the smallest number.
59.99
× .20= 11.99 round up to 12.00
59.99
-12.00=
47.99
47.99
×0.0825=
3.359 round up to 3.96
47.99
+3.96=
Total: $51.95
