The scores on a driver's test are normally distributed with a mean of 100.Find the score that is 3 standard deviations above the mean, if the standard deviation is 14.
A. 128
B. 103
C. 142
D. 114
Answer: C
Mathematics
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Solve the equation graphically. Round to the nearest thousandth.ln
= 7 - log2
A. -2.698; 2.698 B. -2.848; 2.848 C. -2.836; 2.836 D. -2.682; 2.682
Mathematics
Solve the radical equation.
- 
= 3
A. {2} B. {2, 38} C. {3, 8} D. {-2}
Mathematics
Solve the system of equations using elimination.
A. x = 2, y = 3; x = -2, y = 3 ; x = 2, y = -3; x = -2, y = -3 B. x = 2, y = -3; x = 2, y = 3 C. x = -2, y = -3; x = -3, y = -2 D. x = 2, y = 3; x = 3, y = 2; x = -2, y = -3; x = -3, y = -2
Mathematics
A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting the given result.Exactly five twos
A. 0.003 B. 0.083 C. 0.129 D. 0.921
Mathematics