Which statement accurately explains whether a reflection over the y-axis and a 270° counterclockwise rotation would map figure A
CB onto itself? a coordinate plane with figure ACB with point A at 1, 1, C at 3, 4 and B at 5, 1 Yes, A″C″B″ is located at A″(1, 1), C″(4, 3), and B″(1, 5) Yes, A″C″B′ is located at A″(1, 1), C″(3, 4), and B″(5, 1) No, A″C″B″ is located at A″(1, 1), C″(4, 3), and B″(1, 5) No, A″C″B″ is located at A″(1, 1), C″(3, 4), and B″(5, 1)
Okay, So To Find The Mean, We Need To Look At The Values. -588,-838,-691,-818,-846,-725,-605,-732,<span>-750 </span>So, We Add Them, Then Divide. -588+-838+-691+-818+-846+-725+-605+-732+-750 --------------------------------------------------------------------- 9 This Is -732.555556.Rounded Is -733 Now, The Median. The Middle Value. The Middle Value Is -846. So, The Mean Is A, 113 Points Higher.
Systematic sampling is where you basically just set a rule on how to select each person. In this case, the rule would be to select every 5th person that drives through the toll.
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Extra info:
Stratified random sampling is the idea of breaking people into different mutually exclusive homogenous groups (called strata). An example would be to have a group of all boys and another group of all girls.
Voluntary response sampling is exactly what it sounds like: it's whenever you have people who volunteer their responses. In other words, only those who choose to be in the sample will counted. This is more than often a very biased form of sampling.
Simple random sampling (SRS) would involve things like using a random number generator, picking names out of a hat, rolling a dice, etc etc.