Answer:
20
23 is between 20 and 30, but it's closer to 20. So 23 is rounded down to 20.
Decrease 11.11%
I know this I did this on brainly
Answer:
c and d
Step-by-step explanation:
i think
Answer:3.4d
Step-by-step explanation: From Range Rule of thump:
Standard Deviation = (Range)/4
=[(Highest value - lower value)]/4
=(189.2 - 175.6)/4
=13.6/4
=3.4
