For which of the following counts would a binomial probability model be reasonab

Question

For which of the following counts would a binomial probability model be reasonable? A. People develop kidney failure as the result of uncontrolled hypertension, kidney damage from certain drugs, disease (such as diabetes or polycystic kidney disease), or accidental injury. In a group of 20 dialysis patients, eight of them suffered from uncontrolled hypertension, ten had kidney failure due to disease, and two had kidney failure due to drug damage. We select four at random from this group and count how many in our sample suffered from hypertension B. Bush hogs always have litters of 6 piglets. We count the number of males in a litter It is challenging to grow ferns from spores. It can take a month or more for the spores to germinate, and they must be kept moist at all times. A certain percentage of the spores will fail to germinate. We prepare 15 spores in separate containers and count the number that germinate D. A small number of people are called "super multi-taskers" - they can multi- task without the usual loss in performance. Neuroscientists test students until they find a super-multi- tasker, and count the total number of students tested We count the number of mosquito larvae in a pond

Explanation / Answer

Ans:

Option A,B,C are correct.

A)Probability of kidney failure from hypertension=8/20=0.4

n=4

So,binomial distribution with n=4,p=0.4

B)Binomial distribution with n=6,p=0.5 i.e. probability of being a male

C)Let p=probability that a spore germinates

n=15

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