Answer:
18a + 12x - 12a + 15x
6a + 27x
the answer is a
Step-by-step explanation:
So,, there are 5 different flavors. A total of 180 people were asked. Hence, the hypothesis that there is no significant difference is that every flavor gets 180/5=36 flavors. x^2=

. In this case, mi is the proportion of the hypothesis, thus 36, n=180 and xi is the number of actual observations. Substituting the known quantities, we get that x^2=9. The degree of association is given by

. This yields around 0.10, much higher than our limit.
Answer:
a
Step-by-step explanation:
Well i think you are suppose to explain how OR WHAT THE CHANGE IN DECREASE Is.
Hope i helped