Answer:

If we find the individual probabilities we gotL

And replacing we got:
![P(X \geq 3) = 1- [0.0068 +0.0494 +0.1543]= 0.7895](https://tex.z-dn.net/?f=P%28X%20%5Cgeq%203%29%20%3D%201-%20%5B0.0068%20%2B0.0494%20%2B0.1543%5D%3D%200.7895)
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:
For this case we want to find this probability:

And we can use the complement rule for this case:

If we find the individual probabilities we gotL

And replacing we got:
![P(X \geq 3) = 1- [0.0068 +0.0494 +0.1543]= 0.7895](https://tex.z-dn.net/?f=P%28X%20%5Cgeq%203%29%20%3D%201-%20%5B0.0068%20%2B0.0494%20%2B0.1543%5D%3D%200.7895)
Answer:
No.
Step-by-step explanation:
If Marissa subtracts a negative number, it would be like - -x, which is x. So, her result would be positive.
Hope this helps!
Answer:
6.75 I think
Step-by-step explanation:
Just do 27 divided by 4
Sense the total would only be $38.12, we would then only want to find out how much would the book be, and that would be it. We would then want to add both how much the shirt and also the lunch was in total, and by doing this, we would the have to subtract this amount from the total that Shane has spent in total.

As we noted above, we then subtract both this total, and the amount that Shane has spent in this day.

Your answer: The book that Shane has purchased was a total of only
16.79.
16.79 would be your answer.