Question

​Fill in the missing information.

Tim Worker is doing his budget. He discovers that the average miscellaneous expense is $45.00 with a standard deviation of $16.00. What percent of his expense in this category would he expect to fall between $38.60 and $57.80?

1.The z for $38.60 = -____
44.3
28.8
15.5
.8
.4