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Answer:
Step-by-step explanation:
Given that Human visual inspection of solder joints on printed circuit boards can be very subjective. Part of the problem stems from the numerous types of solder defects (e.g., pad non-wetting, knee visibility, voids) and even the degree to which a joint possesses one or more of these defects.
Let A- event inspect A found defective , B - inspector B found defective
,
a) Probability that the selected joint was judged to be defective by neither of the two inspectors=
b) Probability that the selected joint was judged to be defective by inspector B but not by inspector A
=
Hence
P(AB')\\=P(A)-P(AB)
= 0.0766-0.0624
=0.0142
1. Check picture 1.
2. By drawing 2 pairs of points,as shown in the picture, we can easily draw the lines y=2x-1 and y=2x+2
3. We notice that the lines are parallel. (we can notice this also from the slopes of the lines, that is the coefficients of x'es, both equal to 2, which means the lines are parallel)
4. Pick (1, 3), as shown in the picture to check which side of each line we will color. (any point can work.)
5. Check (1, 3) in inequality y_<2x+2:
3_<2*1+2=4 is actually true, so we color the part of the line containing (1, 3)
Check (1, 3) in the inequality y_>2x-1: 3_>2*1-1=1 which is true, so we color the part of the line containing the point:
6. So we color the part below the black line and the part above the blue line.
The solution is the part colored in both cases, which is the strip between the lines.
7. Answer: picture 2 is the graph of the system of inequalities
<span>y_>2x-1 and y_<2x+2</span>
2. By drawing 2 pairs of points,as shown in the picture, we can easily draw the lines y=2x-1 and y=2x+2
3. We notice that the lines are parallel. (we can notice this also from the slopes of the lines, that is the coefficients of x'es, both equal to 2, which means the lines are parallel)
4. Pick (1, 3), as shown in the picture to check which side of each line we will color. (any point can work.)
5. Check (1, 3) in inequality y_<2x+2:
3_<2*1+2=4 is actually true, so we color the part of the line containing (1, 3)
Check (1, 3) in the inequality y_>2x-1: 3_>2*1-1=1 which is true, so we color the part of the line containing the point:
6. So we color the part below the black line and the part above the blue line.
The solution is the part colored in both cases, which is the strip between the lines.
7. Answer: picture 2 is the graph of the system of inequalities
<span>y_>2x-1 and y_<2x+2</span>