Answer:
Step-by-step explanation:
so u would distribute the 5 so it would be 5x + 15 = 30. Then u would subtract 15 to 30 which is 15. So 5x = 15. Then divide 15 by 5 so x = 3
Answer:
a. 250 fields
b. 220 to 280 fields
c. Fields are not independent
Step-by-step explanation:
a. The average number of fields sampled that are infested with whitefly =
number of fields X Percentage sampled, 10%
= 2500 X 10% = 250 fields
b. Going by the binomial distribution is the square of the standard deviation, divided by (the product of the sample size n, and the probability a and b). While the standard deviation is the square root of the variance
σ = √nab
= √na(1-a) = √2500 X 10% X (1- 10%)
= √225 = 15
Now let's use the empirical rule that says about 95% of the observations are within two standard deviations from the mean since the number of trials is very large
μ - 2σ = 250 - 2(15) = 220
μ + 2σ = 250 + 2(15) = 280
Approximately 220 to 280 fields are expected to be infested going by 95% probability observation
c. Since x=25 is considered small and is not captured within 220 and 280 fields making one of the characteristics of binomial experiment not satisfied which expects each field to be independent. Making fields that are close together more likely to be infected.
Answer:
Step-by-step explanation:
We are given the area of a rectangle is 1 inch square.
You can find the area of a rectangle if you know the dimensions. Let's pretend the dimensions are w and l.
So we given w*l=1.
Now the perimeter of a rectangle with dimensions l and w is 2w+2l.
We want to express P=2w+2l in terms of w only.
We are given that w*l=1 so l=1/w (just divided both sides of w*l=1 by w).
So let's plug it in for l (the 1/w thing).
So .
Answer:
most likely has to run 13 miles southeast or 5 miles east and 8 west
Step-by-step explanation:
O-1 id k maybe
I tried ok have a great day
