Answer:
The probability that 13 of them were very confident their major would lead to a good job is 1.08%.
Step-by-step explanation:
Given : A 2017 poll found that 56% of college students were very confident that their major will lead to a good job. If 15 college students are chosen at random.
To find : What's the probability that 13 of them were very confident their major would lead to a good job?
Solution :
Applying Binomial distribution,
Here, p is the success p=56%=0.56
q is the failure
n is the number of selection n=15
The probability that 13 of them were very confident their major would lead to a good job i.e. x=13
Substitute the values,
The probability that 13 of them were very confident their major would lead to a good job is 1.08%.
Answer:
mistake in the second line
Step-by-step explanation:
3(x-6)+(4x+12)-6x
3x-18+4x+12-6x
x-6
300=15x
x=20 weeks
The third equation
w=20 weeks