Ask Experts Questions for FREE Help !
Ask
    treashurebanks's Avatar
    treashurebanks Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 15, 2009, 02:57 PM
    probability of random samples
    The probability that a person will get a cold this year is 0.7. If 4 people are selected at random, what is the probability that all 4 will get a cold this year?
    mathwiz3502's Avatar
    mathwiz3502 Posts: 121, Reputation: 1
    Junior Member
    		  
    #2

    Dec 15, 2009, 03:10 PM

    this can be done with a simple formula
    P^# of times and in your case
    0.7^4
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Probability- Random variables [ 2 Answers ]

Please I want to know the answer of: a discrete random variable X has probability function px(x)=2ֿx (this means 2 to the power of -x), x=1,2,3,. Calculate: a) Pr(X is even) b)Pr(x>5) c)Pr(X is divisible by 3)

Probability + random variables [ 3 Answers ]

Please I want to know the answer of: a discrete random variable X has probability function px(x)=2ֿx (this means 2 to the power of -x), x=1,2,3,. Calculate: a) Pr(X is even) b)Pr(x>5) c)Pr(X is divisible by 3)

Probability using random sampling [ 1 Answers ]

A kindergarten class consists of 14 boys and 11 girls. If the teacher selects children from the class using random sampling, a. What is the probability that the first child selected will be a girl? b. If the teacher selects a random sample of n=3 children and the first two children are both...

View more questions Search