states array ohio iowa arizona statefrequency arraycountvalues printr this returns the..., PHP Arrays, PHP

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Question:$states = array("Ohio", "Iowa", "Arizona", "Iowa", "Ohio");
$stateFrequency = array_count_values($states);
print_r($stateFrequency); 

This returns the following:

A Array ( [Ohio] => 2 [Iowa] => 2 [Arizona] => 2 ) 
B Array ( [Ohio] => 2 [Iowa] => 2 [Arizona] => 1 ) 
C Array ( [Ohio] => 2 [Iowa] => 1 [Arizona] => 1 ) 
D Array ( [Ohio] => 2 [Iowa] => 1 [Arizona] => 2 )

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Question:$states = array("Ohio", "Iowa", "Arizona", "Iowa", "Ohio"); $stateFrequency = array_count_values($states); print_r($stateFrequency); This returns the following:

A Array ( [Ohio] => 2 [Iowa] => 2 [Arizona] => 2 )

B Array ( [Ohio] => 2 [Iowa] => 2 [Arizona] => 1 )

C Array ( [Ohio] => 2 [Iowa] => 1 [Arizona] => 1 )

D Array ( [Ohio] => 2 [Iowa] => 1 [Arizona] => 2 )

B