Answer:
1/2?
Step-by-step explanation:
3 boys over 6 girls. that would be 3/6. 3/6 is already 1/2. but its also simplest form.
Given Information:
Probability of success = p = 75 %
Total number of students = n = 1200
Required Information:
Standard deviation = σ = ?
Answer:
Standard deviation = 15
Step-by-step explanation:
In a binomial distribution, the probability of success does not change from trial to trial and the probability of events in not dependent on each other. Also the number of trials are fixed. So this problem can be modeled using binomial distribution.
The mean of the number of students who choose to enroll is given by
μ = n*p = 1200*0.75
μ = 900
The standard deviation of the number of students who choose to enroll is given by
σ = √np(1 - p)
σ = √1200*0.75(1 - 0.75)
σ = 15
Therefore, the standard deviation of the number of students who choose to enroll is 15.
Answer: The answer is D
Step-by-step explanation: So, we have five parts on it equaling 1, 2, 3, 4 and 5. The top number is our chance, and the bottom number is how many there are in total, so our answer is D, 1/5.
Hope this helps :)
The answer is positive 13
Answer:
4
Step-by-step explanation: