Polydactyly is a fairly common congenital abnormality in which a baby is born with one or more extra fingers or toes. it is reported in about one child in every 500 . a young obstetrician celebrates her first 100 deliveries. what is the probability that the obstetrician has delivered no child with polydactyly? (enter your answer rounded to four decimal places.)

Using the principle of binomial probability, the probability that the obstetrician delivers no child with polydactyl is : 0.8186

Recall :

Probability of delivering no child with polydactyl ; x = 0

Substituting the values into the equation

Therefore, the probability that the doctor delivers no child with polydactyl is 0.8186

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There is a 81.86% probability that the obstetrician has delivered no child with polydactyly.

Step-by-step explanation:

There are only two possible outcomes: Either the baby has the anormality, or he hasn't. So we use the binomial probability distribution.

Binomial probability

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And is the probability of X happening.

In this problem, we have that:

It is reported in about one child in every 500, so .

A young obstetrician celebrates her first 100 deliveries, so

What is the probability that the obstetrician has delivered no child with polydactyly?

That is P(X = 0)

There is a 81.86% probability that the obstetrician has delivered no child with polydactyly.

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step-by-step explanation:

the correct answer is a) they believe they have a "just cause."

islamic terrorists justify their violent actions because they believe they have a "just cause."

every act of terrorism of islamic sects is done “in the name of allah”. that justifies their actions. islam people who commit those terrorist attacks are not afraid to die. that is why the attacks have horrible consequences. they know they are going to die and they are proud to do it because it is in the name of allah, so it is justified and is for a “good cause.”

since the very beginning of the conflict with israel, islam is fighting a “sacred war”, respecting the words stated in the qur’an. they fight against the domination of the western countries and to defend their occupied territories.