subject
Mathematics, 16.12.2021 02:00 yesseniaroman21

Biologists are analyzing soil to check for the number of worms and grubs in a wildlife preserve. Let the random variable W represent the number of worms found in 1 square foot of soil, and let the random variable G represent the number of grubs found in 1 square foot of soil. The following tables show the probability distributions developed by the biologists for W and G. W 0 1 2 3 4 5 6
Probability 0.05 0.06 0.18 0.35 0.30 0.05 0.01
G 0 1 2 3 4 5 6
Probability 0.05 0.21 0.27 0.38 0.05 0.03 0.01

Assume that the distributions of worms and grubs are independent. What are the mean, μ, and standard deviation, Ï, for the total number of worms and grubs in 1 square foot of soil?

a. μ=5 and Ï=1.67
b. μ=5 and Ï=2.36
c. μ=5.28 and Ï=1.67
d. μ=5.28 and Ï=2.36
e. μ=5.28 and Ï=2.79

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:30
Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.
Answers: 1
question
Mathematics, 21.06.2019 18:00
In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36
Answers: 3
question
Mathematics, 21.06.2019 19:00
Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?
Answers: 1
question
Mathematics, 21.06.2019 19:40
What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1
Answers: 2
You know the right answer?
Biologists are analyzing soil to check for the number of worms and grubs in a wildlife preserve. Let...
Questions
question
Biology, 16.06.2021 19:20
question
English, 16.06.2021 19:20
question
English, 16.06.2021 19:20
question
Mathematics, 16.06.2021 19:20
question
Spanish, 16.06.2021 19:20
question
Mathematics, 16.06.2021 19:20