Answer:
There is a probability of 76% of not selling the package if there are actually three dead batteries in the package.
Step-by-step explanation:
With a 10-units package of batteries with 3 dead batteries, the sampling can be modeled as a binomial random variable with:
- n=4 (the amount of batteries picked for the sample).
- p=3/10=0.3 (the proportion of dead batteries).
- k≥1 (the amount of dead batteries in the sample needed to not sell the package).
The probability of having k dead batteries in the sample is:
Then, the probability of having one or more dead batteries in the sample (k≥1) is:
Answer:
x = number of days
y = number of remaining photos saved to her camera roll.
Step-by-step explanation:
Hi, to answer this question we have to write an equation:
The number of pictures saved in the camera roll (2,500) minus the amount of photos that she deletes per day (50) multiplied by the number of days (x) must be equal to the number of photos remaining.
y =2,500- 50x
The variables are x and y.
Where x is the number of days and y is the number of remaining photos.
Feel free to ask for more if needed or if you did not understand something
The false (wrong) equation among them is : A
Because any number in a modulus comes out to be positive.
