Answer:
a) 0.972
c) 20
Explanation:
Let X be the random variable of number of people that need to be tested to detect 2 with the gene. X is a negative binomial random variable with te parameters: p=0.1 r= 2 The probability mass function of X is given by:
f(x) = (x-1/1) x 0.9 x-2 x o.1 2, x>= 2
calculate:
p(x>=4) = 1-P (x=3) - P (x=2) =0.972
E(X) = 2/0.1 = 20
Answer:
A pteridophyte is a vascular plant that disperses spores. Because pteridophytes produce neither flowers nor seeds, they are sometimes referred to as "cryptogams", meaning that their means of reproduction is hidden. Ferns, horsetails, and lycophytes are all pteridophytes.
Explanation:
A ) Would be the correct answer!
-Hope this helps you:))
I think structure however I am not sure so keep that in mind.
Some form of plant life. It could be a tree, flower, even a simple blade of grass.
