Answer:
P(0) = 0.055
P(1) = 0.16
P(2) = 0.231
P(3) = 0.224
P(4) = 0.162
P(5 or more) = 0.168
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given interval.
Here λ = 2.90 is the average number of bacteria colonies per field.
This means that 
Compute P(r) for r = 0, 1, 2, 3, 4, and 5 or more.
5 or more:
This is
In which:
So
P(5 or more) = 0.168
Answer:
Step-by-step explanation:
let x be the side length of the small square
x² + (x + 3)² = 89
x² + (x² + 6x + 9) = 89
2x² + 6x - 80 = 0
x² + 3x - 40 = 0
(x + 8)(x - 5) = 0
so x = -8 or x = 5
A negative length does not make sense
small square side 5 inch
5 + 3 = 8
large square side 8 inch
I’ll say the first one’s y-axis is -2 and the slope is 1. Then shade under it. The second one’s y-axis is 5 and the slope is -3. The line will be dashed and shade over it
-5(4+m)+2 The m is 3 :3 Hope this helped
61/8 or 7 and 5/8. I would try either one
