100 students take a course pass/fail. If they pass they get 4 points towards their GPA, if they fail they get 0. If 90 students
1 answer:
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To solve this problem you must apply the proccedure shown below:
1. Let's round the value to the nearest hundredth. As you can see, the digit 8 is in the thousandths place and is greater than 5, therefore, you must round up to 0.038.
2. Now express the value as a single digit times a power of 10, as following:
x
Therefore, the answer is: x
Answer:
(a)
(b)
(c)
Step-by-step explanation:
The given problem can be solved using binomial distribution since the product either fails or passes, the probability of failure or success is fixed and there are n repeated trials.
probability of failure = q = 0.05
probability of success = p = 1 - 0.05 = 0.95
number of trials = n = 1000
(a) What is the expected number of non-defective units?
The expected number of non-defective units is given by
(b) what is the COV of the number of non-defective units?
The coefficient of variance is given by
Where the standard deviation is given by
So the coefficient of variance is
(c) What is the probability of having more than 980 non-defective units?
We can use the Normal distribution as an approximation to the Binomial distribution since n is quite large and so is p.
We need to consider the continuity correction factor whenever we use continuous probability distribution (Normal distribution) to approximate discrete probability distribution (Binomial distribution).
The z-score corresponding to 4.28 is 0.99999
So it means that it is very unlikely that there will be more than 980 non-defective units.
Given:
Mrs. Applegate owns of the business.
Mrs. Brown owns 3 times as much as Mrs. Charles.
To find:
The fractional part of the business that Mrs. Brown owns.
Solution:
Let Mrs. Charles owns x part of business.
Mrs. Brown owns 3 times as much as Mrs. Charles.
Mrs. Brown owns = 3x part of business.
Mrs. Applegate owns of the business.
Divide both sides by 4.
Now,
Mrs. Brown owns
Therefore, Mrs. Brown owns of the business.