Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20
B. 100
C. 10
D. 500
Answer: C
Mathematics
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Find the limit.
A. -1 B. -? C. 0 D. ?
Mathematics
Solve the problem.An election involving 6 candidates and 20 voters is held and the results of the election are to be determined using the Borda count method. The minimum number of points a candidate can receive is
A. 60 points. B. 20 points C. 15 points D. 120 points. E. none of these
Mathematics
Find an approximate solution of the equation. Round the result to the second decimal place.4.8
+ 2.2 = 26.8
A. 2.26 B. 26.27 C. 5.13 D. 36.50
Mathematics
The equation of line l is: 2y = -3x + 4
(a) Rewrite the line l in the form y = mx + b. (b) What is the slope of line l? What is the y-intercept of line l? (c) Show that the point (2, -1) is on line l.
Mathematics