Answer:
10.5 is really 10.50 the . 5 is half the whole one unit, like 50 cents is half a dollar
29 I think but iam not sure if it’s right
9514 1404 393
Answer:
Z ≈ 1.25027
Step-by-step explanation:
There is really no substitute for a good probability table, app, or calculator. Any of these, or a spreadsheet, will tell you the value of Z is about 1.25027.
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The attachment shows a spreadsheet computation.
It's -5.25 because 5*8 is 40 and 6*8 is 48.
I can not see the picture, try adding a better pic