Answer:
1:4
Step-by-step explanation:
84-63=21
there are 21 milk chocolates in the box
ratio of milk chocolates to total number of chocolates=21:84
simplify that=1:4
Answer: 0.45
(no 2 and 4) 15%+30% = 45%
45/100 = 0.45
Negative numbers aren't considered in any of those categories.
it can be 4 or five depending on wich other way
degrees of freedom is always sample size(n)-1, 15-1=14
ANSWER D 14