Numbers 1 & 4 are correct
Answer:
2:5
Step-by-step explanation:
Since 40% is basically 40:100, You can scale it down by a factor of 20, giving you 2:5.
20.0 + 03.0 + 00.5
,.................
Answer:
B and D
Step-by-step explanation:
Surveys are only tested with one group.
Answer:
216
Step-by-step explanation: