On a drafting test, the scores achieved are as follows: 4 students, 82%; 5 students, 77%; 4 students, 88%; 5 students, 84%; 1 student, 99%, and 1 student, 58%. What was the average score on the test? Round the answer to the nearest hundredth as necessary.
What will be an ideal response?
82.1%
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The best tiller of the soil is the:
a. tractor c. earthworm b. shovel d. soil microbe
Lines used in dimensioning are:
A. Fractional, decimal, and angular lines B. Extension, dimension, and leader lines C. Unilateral and bilateral lines D. Unidirectional and aligned lines
A P0132 DTC is being discussed. Technician A says that a defective HO2S could be the cause. Technician B says that an HO2S signal wire shorted-to-ground could be the cause. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
The Q-function is often used in the communications literature to express the probability of error. Unfortunately, Matlab® does not have a built-in Q-function; however, the built-in complementary error function erfc(x) can be used to obtain the Q-function:
Obtain an expression for Q(x) in terms of erfc(x).