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ale4655 [162]
3 years ago
13

A quality control engineer tests the quality of produced computers. Suppose that 5% of computers have defects and defects occur

independently of each other. I need to find the probability that the engineer has to test at least 5 computers in order to find 2 defective ones.
I thought of it and came up with a solution though I'm not sure whether it's correct or not.

The probability of finding 2 defective is p=0.05∗0.05=0.025 P(T≥5)=1−[P(T=4)+P(T=3)+(T=2)]=1−[0.025∗(0.975)3+0.025∗(0.975)2+0.025∗(0.975)1]=1−[0.025∗0.975(1+0.975+(0.975)2)=0.9300442
Mathematics
1 answer:
gogolik [260]3 years ago
7 0

Answer:

*(0.168) 1*.75-9386

2865

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Answer:

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Step-by-step explanation:

equilateral triangle has all sides So,

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Answer:

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The value of y varies directly as x and y is 9 when x is -3 what constant of variation k?
Lady bird [3.3K]
Y/x=k

when y=9, then x= -3
        9/-3=-3
⇒ k= -3
7 0
3 years ago
What is the pattern 3.5 to 13
mars1129 [50]
Adding 9.5 every time

4 0
3 years ago
Write an equation in slope intercept form for the line that passes through (2,-2) and is parallel to y=-5/2x+5
DENIUS [597]

y=mx+b\\y=x-2

<em>Only y= x - 2 intercepts x-axis at 2 and y-axis at -2. Thus meaning that they intercept oppositely.</em>

<em>Find if both graphs are parallel, that means the equation must be false.</em>

<em />x-2=-\frac{5}{2}x+5<em />

<em>Multiply whole equation by 2 to get rid of the fractional 2.</em>

<em />2x-(2)(2)=-\frac{5}{2}(2)(x)+5(2)\\ 2x-4=-5x+10\\2x-4+5x-10=0\\7x-14=0\\7x=14\\x=2<em />

<em>Well, that doesn't seem to be parallel. This is called one solution answer. Both graphs intercept at (2,0). There are no linear graphs that intercept at (2,-2) except for y = x-2 so there are no graphs with (2,-2) that are parallel to the equation y = -5x/2+5 </em>

8 0
3 years ago
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