Answer:
14.78% probability that a sample of 10 covers will contain exactly 2 defectives
Step-by-step explanation:
For each cover, there are only two possible outcomes. Either it is defective, or it not. The probability of a cover being defective is independent from other covers. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
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 combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
If the fraction of defective covers produced on the USB Mouse Factory production line is known to be 8%, what is the probability that a sample of 10 covers will contain exactly 2 defectives?
This is when . So
14.78% probability that a sample of 10 covers will contain exactly 2 defectives
<u>Answer:</u> 5
<u>Reasoning:</u> You were born 7 years ago making you 7, now subtracting 2 from that age will result in 5.
7-2=5!
Answer:
Step-by-step explanation:
The fraction of the catalog that is checked after 4 days is <u>5/6</u>
Answer:
none
Step-by-step explanation:
becàuse it has thesame masses