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
Answers: 3
Mathematics, 21.06.2019 21:30, natalieburnett82
Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?
Answers: 2
Biologists are analyzing soil to check for the number of worms and grubs in a wildlife preserve. Let...
Mathematics, 17.09.2019 18:10