A ruler is used to measure the width of the spine of a book.
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СМ
Using this ruler, what is the greatest level of precision possible for the measurement of the width of the
spine of the book?
1.00 cm
0 0.10 cm
0.02 cm
0.01 cm
Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?