kaylor koh
New member
- Joined
- Sep 20, 2009
- Messages
- 12
Hi
I'm trying to solve some of my stats question, and I'm not sure about some of my answers, and have a few questions. Please help and explain.Thank you
1. Can -0.29(negative) be a probability? My answer is no.
2. There are 200 women, 10 of them smoke.
There are 150 men,14 of them smoke.
What is the probability the selected person is women or a smoker.
My answer is: 107/175
3. 60% of the tire are produced in Rochester,and 2% have slight blemish.
40% of the tire are produced in Albany, and 14% have slight blemish.
What is the probability that the tire purchase is blemish and from Buffalo?
My answer is:0.012 (using multiplication rule)
4. 3 movies of 19movies. How many different list of 3 movies can you have?
5. 0.74 are ladies.
0.40 of the ladies smoke.
0.5 of the class smoke.
the probability that the selected student is a man and smk.
6. A and B are mutually exclusive.
If P(A)=0.1 and P(B)=0.6
What is P(A or B) ?
I'm trying to solve some of my stats question, and I'm not sure about some of my answers, and have a few questions. Please help and explain.Thank you
1. Can -0.29(negative) be a probability? My answer is no.
2. There are 200 women, 10 of them smoke.
There are 150 men,14 of them smoke.
What is the probability the selected person is women or a smoker.
My answer is: 107/175
3. 60% of the tire are produced in Rochester,and 2% have slight blemish.
40% of the tire are produced in Albany, and 14% have slight blemish.
What is the probability that the tire purchase is blemish and from Buffalo?
My answer is:0.012 (using multiplication rule)
4. 3 movies of 19movies. How many different list of 3 movies can you have?
5. 0.74 are ladies.
0.40 of the ladies smoke.
0.5 of the class smoke.
the probability that the selected student is a man and smk.
6. A and B are mutually exclusive.
If P(A)=0.1 and P(B)=0.6
What is P(A or B) ?