For the given measurement, briefly describe any likely sources of random error and any likely sources of systematic error.An agency wishes to determine the number of unemployed people in a town. They conduct a mini-census by delivering a survey to every household in the town, asking for information about household members. The information is entered into a computer.
What will be an ideal response?
Answers may vary. Possible answer
Sources of random error:
errors made by people filling out the surveys
errors made entering the data into the computer
Systematic error:
some people won't be counted because they won't respond to the survey - undocumented immigrants especially are unlikely to respond.
Certain groups will be excluded from the survey - homeless people and prisoners for example
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Find the missing parts of the triangle. B = 15.6°b = 16.58a = 30.83If necessary, round angles to the nearest tenth and side lengths to the nearest hundredth.
A. A = 30°, C = 134.4°, c = 44.05 B. no such triangle C. A = 150°, C = 14.4°, c = 15.33 D. A1 = 30°, C1 = 134.4°, c1 = 44.05; A2 = 150°, C2 = 14.4°, c2 = 15.33
Find the future value of the ordinary annuity rounded to the nearest cent.
A. $165,056.34 B. $216,616.40 C. $370,619.36 D. $198,970.82
The function f is one-to-one. Find its inverse.f(x) = (x + 7)3
A. f-1(x) = 
+ 7
B. f-1(x) = 
- 343
C. f-1(x) = 
- 7
D. f-1(x) = 
- 7
Determine the quadrant(s) in which (x, y) is located so that the condition(s) is (are) satisfied. ? xy< -4 ?
A. Quadrant II or III B. Quadrant I or III C. Quadrant III or IV D. Quadrant II or IV E. Quadrant I or IV