Find the standard deviation. Round to one more place than the data.2, 6, 15, 9, 11, 22, 1, 4, 8, 19
A. 7.1
B. 6.8
C. 6.3
D. 2.1
Answer: A
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Evaluate the given function with the following information: sin ? = 
(? in first quadrant) and cos ? = - 
(? in second quadrant).cos(? - ?)
A. - 
B. - 
C. 
D. 
XC = 6 Kê and C = 0.01 æF. Find f.
a. 422 Hz b. 1.0 KHz c. 1.91 KHz d. 2.65 KHz e. 16.64 KHz
The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400If 
of the family income is spent on entertainment, how much did they spend for entertainment last year?
A. $5400 B. $4200 C. $5030 D. $5920
Solve the problem.The odds against Carl beating his friend in a round of golf are 7 : 5. Find the probability that Carl will lose.
A. 
B. 
C. 
D. 