Part A:
From the central limit theorem, since the number of samples is large enough (up to 30), the mean of the the mean of the average number of moths in 30 traps is
0.6.
Part B:
The standard deviation is given by the population deviation divided by the square root of the sample size.

Part C:
The probability that an approximately normally distributed data with a mean, μ, and the standard deviation, σ, with a sample size of n is greater than a number, x, given by

Thus, given that the mean is 0.6 and the standard deviation is 0.4, the probability that <span>the average number of moths in 30 traps is greater than 0.7</span> given by:
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Answer:
1296π m^3
Step-by-step explanation:
The volume of a cylinder is given by
V=πr^2h
We are given the diameter. To find the radius, divide the diameter in half.
r = d/2 = 24/2 = 12
Substituting in what we know
V = pi * (12)^2 * 9
V = pi *1296 m^3
Answer:
1/6 or 6/36
Step-by-step explanation:
Given the qualifications, there are six qualifying combinations out of the 36 combinations, which simplified, is 1 out of 6.
2x + 2y + 1z = -5 ⇒ 2x + 2y + 1z = -5 ⇒ 4x + 4y + 2z = -10
3x + 4y + 2z = 0 ⇒ 3x + 4y + 2z = 0 ⇒ 3x + 4y + 2z = 0
1x + 3y + 2z = 1 x = -10
2x + 2y + 1z = -5
3x + 4y + 2z = 0 ⇒ 3x + 4y + 2z = 0
1x + 3y + 2z = 1 ⇒ 1x + 3y + 2z = 1
2x + y = -1
2x + y = -1
2(-10) + y = -1
-20 + y = -1
+ 20 + 20
y = 19
2x + 2y + z = -5
2(-10) + 2(19) + z = -5
-20 + 38 + z = -5
18 + z = -5
- 18 - 18
z = -23
(x, y, z) = (-10, 19, -23)