I really need help on 3 b and c. b. Find the 80th percentile of the diameter of

Question

I really need help on 3 b and c.

b. Find the 80th percentile of the diameter of ed Biood 3 Of all the trees planted last year by a landscaping firm, 10% died within a month. Suppose a new landscaping firm is hired to plant 15 new trees. Let X denote the number of trees planted (out of 15) that died. b. What vaues ot X are consistent with the previous landscaping company'& filutn to. c. What values of X indicate that the new landscaping company has a higher failure rate than the previous contractor?

Explanation / Answer

b) The previous rate of failure is 10%

So for 15 trees the expected value of the number of trees planted (out of 15) that died is 15*10 = 1.5

Since X takes the integer value so that the values of X may be 1 or 2 out of 15 trees.

c) For all the values greater than 2 to 15 indicates that the failure rate of the new landscaping company has higher than the previous contractor.

c)

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