Use the table of z-scores and percentiles to find the percentage of data items in a normal distribution that lie a. above and b. below the given score.z = 0.3
A. 61.79%, 38.21%
B. 38.21%, 61.79%
C. 0%, 100%
D. 61.79%, 61.79%
Answer: A
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Find the indicated quantities for the appropriate arithmetic sequence.A collection of dimes is arranged in a triangular array with 11 coins in the base row, 10 in the next, 9 in the next, and so forth. Find the value of the collection.
A. $3.30 B. $0.66 C. $6.60 D. $13.20
Identify the variable factors and indicate the degree.6
A. none; degree 1 B. none; degree 0 C. 6; degree 0 D. 6; degree 1
Solve the problem.An airline with two types of airplanes, P1 and P2, has contracted with a tour group to provide transportation for a minimum of 400 first class, 900 tourist class, and 1500 economy class passengers. For a certain trip, airplane P1 costs $10,000 to operate and can accommodate 20 first class, 50 tourist class, and 110 economy class passengers. Airplane P2 costs $8500 to operate and can accommodate 18 first class, 30 tourist class, and 44 economy class passengers. How many of each type of airplane should be used in order to minimize the operating cost?
A. 14 P1 planes and 7 P2 planes B. 13 P1 planes and 9 P2 planes C. 5 P1 planes and 22 P2 planes D. 9 P1 planes and 13 P2 planes
Solve the problem.One printer can do a printing job in 2 hr. Another printer can do the same job in 13 hr. How long does it take the two printers to do the job working together?
A. 1
hr
B. 2
hr
C. 1
hr
D. 
hr