Complete Question:
The complete question is shown on the first uploaded image
Answer:
The probability that the random you randomly select species that are greater than 200 kg is = 7/62
Step-by-step explanation:
Step One: Load the data set in to the R work space
data(mammals,package="MASS")
attach(mammals)
Step 2 : Obtain the list of the species that are greater than 200 and store it on y variable.
y <- subset(mammals,body>200)
Step Three : Obtain the total size
nrow(mammals)
Step Four : Obtain the sum of species greater than 200
sum(body > 200)
total size = 62
size with body > 200 = 7
hence
required probability = 7/62
No. 16.454 has an extra number at the end. If the 4 at the end of 16.454 was a 0 then it wouldn't matter and they would be equal.
M(n+1)-n(m-1) (distribute m into (n+1))
mn+1m-n(m-1) (distribute -n into (m-1))
mn+1m-nm+1n (collect like terms) (the mn cancel out)
m+n