SOLUTION: Eighty percent of trees planted by a woodlands conservation group survive. What is the probability that: a. 10 of the 12 trees just planted will survive? b. at least 10 of the t

Question 469701: Eighty percent of trees planted by a woodlands conservation group survive. What is the probability that:
a. 10 of the 12 trees just planted will survive?
b. at least 10 of the trees just planted will survive?
For part a, am I just suppose to multiply (.8) (10/12)?
I have no idea what to do for part b.
Thanks for your help.
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
a)
p=.8, q=.2
nCr=12C10=66 coefficient
66p^10q^2=.2835
.
b)
p^12+12p^11q+.2835=.5583
.
Ed
RELATED QUESTIONS
Eighty percent of trees planted by a woodlands conservation group survive. What is the... (answered by ewatrrr)

Of all the trees planted by a landscaping firm, 70% survive. What is the probability that (answered by Fombitz)

Ninety percent of the trees planted by a landscaping firm survive. What is the... (answered by solver91311)

2.Ninety percent of the trees planted by a landscape firm survive. If 20 trees are... (answered by ikleyn)

*****Of all the trees planted by a landscaping firm, 55% survive. What is the probability (answered by Theo)

Of all the trees planted by a landscaping firm, 70% survive. What is the probability that (answered by ewatrrr)

Of all the trees planted by a landscaping firm, 35% survive. What is the probability that (answered by stanbon)

Of all the trees planted by a landscaping firm, 75% survive. What is the probability that (answered by Fombitz)

60% of the trees planted by Quick Grow Landscaping survive.Quick Grow has just planted 12 (answered by stanbon)