Find the percentage of data items in a normal distribution that lie (a) above and (b) below the given z-score.z = -0.7
A. a) 0%, b) 100%
B. a) 75.8%, b) 24.2%
C. a) 24.2%, b) 75.8%
D. a) 24.2%, b) 24.2%
Answer: B
Mathematics
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Find the error in the traditional algorithm method:
??
A. ?Multiplication and addition error (9 × 3 + 3) B. ?Forgot to add carried number (second column) C. ?Added total incorrectly D. ?Place-value error in the second row of computation E. Place-value error in the first? row of computation
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Solve the equation. Give an approximate solution to four decimal places.2x + 8 = 6
A. {8.3869} B. {1.2899} C. {-5.4150} D. {-0.4260}
Mathematics
In a 30°–60° right triangle the length of the longer leg is the product of the shorter leg and
(a) 1/2 ?3 (b) the hypotenuse. (c) ?3 (d)1/2 ?2 (e) ?2
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Multiply. Write a mixed numeral for the answer.3
? 4
A. 17
B. 16
C. 15
D. 12
Mathematics