Answer:
a) 0.6561
b) 0.2916
c) 0.3439
Step-by-step explanation:
We are given the following information:
Let us treat high level of contamination as our success.
p = P(High level of contamination) = P(success) = 0.10
n = 4
The, by binomial distribution:

a) P(No high level of contamination)
We put x = 0, in the formula.

Probability that no lab specimen contain high level of contamination is 0.6561
b) P(Exactly one high level of contamination)
We put x = 1, in the formula.

Probability that no lab specimen contain high level of contamination is 0.6561
c) P(At least one contains high level of contamination)

Probability that at least 1 lab specimen contain high level of contamination is 0.3439
Answer:
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2 is less than is greater than or equal to 4 and less than or equal to 9.
Answer:
Step-by-step explanation:
One of the easier approaches to graphing a linear equation such as this one is to solve it for y, which gives us both the slope of the line and the y-intercept.
x-3y=-6 → -3y = -x - 6, or 3y = x + 6.
Dividing both sides by 3, we get y = (1/3)x + 2.
So the slope of this line is 1/3 and the y-intercept is 2.
Plot a dot at (0, 2). This is the y-intercept. Now move your pencil point from that dot 3 spaces to the right and then 1 space up. Draw a line thru these two dots. End.
Alternatively, you could use the intercept method. We have already found that the y-intercept is (0, 2). To find the x-intercept, let y = 0. Then x = -6, and the x-intercept is (-6, 0).
Plot both (0, 2) and (-6, 0) and draw a line thru these points. Same graph.
It looks like the differential equation is

Multiply both sides by 1/(<em>x</em> + 1) :

The left side is now a derivative of a product,

Integrate both sides with respect to <em>x</em> :

Solve for <em>y</em> :
