Find the areas for the following Z- scores 1) -3.27
2) 1.77
3) 2.59
4) 3.60
5) 2.52
6) 1.07
7) -1.38
8) -2.89
9) 2.1
10) -1.9
11) 1.92
12) 0.40
13) -1.56
14) 2.44
15) 0.7
16) 2
17) 1.89
18) -1.54
19) -3.3
20) -1

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Step-by-step explanation:

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b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.