Refer to a normal distribution described by the following figure. The mean is ? and the standard deviation is ?.
What is the approximate value of Q3?
A. 65.7
B. 75
C. 55.2
D. 57.9
E. none of these
Answer: D
Mathematics
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Write an equation for the hyperbola.
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
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Find the probability of the event.The probability that a radish seed will germinate is .7. The gardener plants 20 seeds and she harvests 16 radishes.
A. .130 B. .571 C. .068 D. .075
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Simplify.(x-4y4)-1
A. 
B. 
C. 
D. 
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Solve. 7 + x = 8
A) x = 7 B) x = 1 C) x = 8 D) x = -8 E) x = -15
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