Find the dot product of U and V u=7i, v = -2i + 5j
1 answer:
You might be interested in
Answer:
0.0025 = 0.25% probability that both are defective
Step-by-step explanation:
For each item, there are only two possible outcomes. Either they are defective, or they are not. Items are independent of each other. 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.
5 percent of these are defective.
This means that
If two items are randomly selected as they come off the production line, what is the probability that both are defective
This is P(X = 2) when n = 2. So
0.0025 = 0.25% probability that both are defective
Answer:
1/4 or 25%
Step-by-step explanation:
The probability for rolling an odd number is 50% or because there are 3 odd numbers, (1, 3, 5) and 6 total outcomes (1, 2, 3, 4, 5, 6).
The probability for rolling two odd numbers in a row is
So, the probability of rolling an odd number twice is 25% or .
Answer:
27.8%
Step-by-step explanation:
0.722 = 72.2%
The % reduction is:
(100-72.2)% = 27.8%
Hope this helps