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Four couples are at a party. Four people of the eight are randomly selected to win a prize. No person can win more than one prize. What is the probability that both members of at least one couple win?
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∙ 11y ago
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∙ 11y ago
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A band leader randomly selects 2 students out of 80 band members. If you and your brother are both band members what is the probability that you are both selected?
1/3160 The chances of you being the first one selected and then your friend the second are: (1/80)x(1/79)= 1/6320 (once your are selected there are only 79 students left - your friend among the 79) Likewise the chance of your friend being selected first and you second are also 1/6320 Since it doesn't matter which one of you gets chosen first the probability is the sum of those two probabilities, i.e. 2/6320 = 1/3160
A school debate team has 4 girls and 6 boys. A total of 3 of the team members will be chosen to participate in the district debate. What is the probability that 3 girls and no boys will be selected?
1-30
A school debate team has 4 girls and 6 boys. A total of 4 of the team members will be chosen to participate in the district debate. What is the probability that 2 girls and 2 boys will be selected?
3-7
A group of 10 people consists of 5 men and 5 women A committee of 4 is chosen from this group What is the probability that one or more of the committee members is a man?
The probability that there are 1,2,3 or 4 men is 1-(the probability that no men are selected). First we select the first person. The probability that this person is a woman is 5/10=1/2. For second person it is 4/9, then 3/8 and finally 2/7. We multiply these together: (1*4*3*2)/(2*9*8*7)=24/1008. This is the probability that every single person in the committee is a woman. One minus that probability is 984/1008=41/42 which is 97.619% Read more >> Options >> http://www.answers.com?initiator=FFANS
What percent of members in a random sample have an equal chance of being selected?
100% or each one of them.
A band leader randomly selects 2 students out of 80 band members. If you and your brother are both band members what is the probability that you are both selected?
1/3160 The chances of you being the first one selected and then your friend the second are: (1/80)x(1/79)= 1/6320 (once your are selected there are only 79 students left - your friend among the 79) Likewise the chance of your friend being selected first and you second are also 1/6320 Since it doesn't matter which one of you gets chosen first the probability is the sum of those two probabilities, i.e. 2/6320 = 1/3160
A tennis club has 100 members .Of these are adults and the rest are children .A member is selected at random.What is the probability that this member is a child?
1/35
A sample selected in such a way that each members of the population has an equal probability of being chosen?
That is known as a simple random sample, or SRS.
How many people sit on the jury in an English trial?
12 members slected randomly out of a box with their names in. It starts as a larger number in court but only 12 names are selected for the trial
What is the defining characteristic of a random sample?
Each member of the population has the same probability of being in the sample as any other. Equivalently, any set of members of the given sample size has the same probability of being selected as any other set.
How the members of government are selected?
They are selected by the national supreme court.
A school debate team has 4 girls and 6 boys. A total of 3 of the team members will be chosen to participate in the district debate. What is the probability that 3 girls and no boys will be selected?
1-30
A school debate team has 4 girls and 6 boys. A total of 4 of the team members will be chosen to participate in the district debate. What is the probability that 2 girls and 2 boys will be selected?
3-7
A 5-person review committee is composed of reps from two community organizations urban and rural with 18 and 15 members respectively if only 5 selected what is the probability no more than2from urban?
The prob is 0.4095, approx.
How many members are selected for jury?
12
How often are members of the executive branch members selected at their position?
they ate a salad
How are members of boards of accountancy selected?
Typically members of a board of accountancy are appointed by a state's governor and include both licensed CPAs and public members. The CPA members are often selected by the governor after consulting with the state's CPA society
