16/9 is the answer, just use a calculator next time or multiple 4/3 x 4/3
It is (D) I believe. From what I can see it is going down from 1.40 to 1.39 from November to December which is a loss of 0.01
Answer:
Both Jeff and Lori are wrong.
Step-by-step explanation:
-63 is the final answer
Answer:
(29-23)²/23 + (16-23)²/23 + (19-23)²/23 + (28-23)²/23
Step-by-step explanation:
Given :
n(American) = 29
n(Chinese) = 16
n(Mexican) = 19
n(Italian) = 28
Expected value = (29 + 16 + 19 + 28) / 4
Where, 4 = sample size
Expected value, E = 23
χ² = (Observed value - Expected value)² / expected value
χ² = (29-23)²/23 + (16-23)²/23 + (19-23)²/23 + (28-23)²/23
