Given P(strike) = .7 What is the P(not getting all strikes in three attempts), Enter value as a decimal with three numbers to the right of the decimal

We can begin calculating the following probability:

And using the probability mass function we got:

And since we want to find the probability of not getting all strikes in three attempts we can ose the complement rule and we got:

P(not getting all strikes in three attempts) =1-P(X=3) =1-0.343=0.657

Step-by-step explanation:

Previous concepts  

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".  

Solution to the problem

Let X the random variable of interest, on this case we now that:  

The probability mass function for the Binomial distribution is given as:  

Where (nCx) means combinatory and it's given by this formula:  

We can begin calculating the following probability:

And using the probability mass function we got:

And since we want to find the probability of not getting all strikes in three attempts we can ose the complement rule and we got:

P(not getting all strikes in three attempts) =1-P(X=3) =1-0.343=0.657

can you me with homework?

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %