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Suppose a population consisted of 20 items How many different samples of n equals 3 are possible?
Wiki User
∙ 12y ago
There are 20 ways to choose the first sample, which leaves 19 ways for the second one, and 18 for the third one. So (apparently) there are 20 x 19 x 18 ways to choose a sample of 3 items, BUT, since the order of choosing a particular set of 3 doesn't matter, we need to divide by 3 x 2 x 1; so the final calculation is (20 x 19 x 18) divided by (3 x 2 x 1). Cancelling by the 3 and the 2 we have 10 x 19 x 6 = 10 x 114 = 1140
Wiki User
∙ 12y ago
Anonymous
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Suppose a normal random variable has a mean of 72 inches and a standard deviation of 2 inches Suppose the random variable X measures the height of adult males in a certain city One may therefore con?
Suppose a normal random variable has a mean of 72 inches and a standard deviation of 2 inches. Suppose the random variable X measures the height of adult males in a certain city. One may therefore conclude that approximately 84% of the men in this population are shorter than?
How do you find the mean of frequency distributions?
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SUPPOSE WE study the CONTINUOUS VARIABLE: "REPAIR TIME of A machine, in MINUTES". where the POPULATION average IS 135MIN. A SAMPLE of 20 OBSERVATIONS of THAT VARIABLE IS TAKEN. IS possible for the SAMPLE MEAN TO BE EXACTLY EQUAL TO 135MIN?
Yes, it is possible for the sample mean to be exactly equal to 135 minutes. This is because the sample mean is calculated by dividing the sum of all the observations by the number of observations. Therefore, if the sum of all the observations is exactly equal to 2700 minutes (135 times 20), the sample mean would be 135 minutes. However, this is highly unlikely to happen.
The of all possible outcomes for an event is called the sample space?
The set of all possible outcomes of an experment is called the sample space. Suppose an experiment consists of a coin 2 times. Let H represents heads and T represent tails. The sample space for this experiment is {HH,TT,HT,TH}. There are 4 elements in the sample space.
Suppose A and B are independent events. If p a 0.3 and what is?
.7
What is the percentage of sociopaths among the Ashkenazi Jewish population?
There is no reason to suppose it is any different from that of the rest of the population.
Is it possible to be allergic not to all cats but a certain cat?
I suppose so, I've never heard of it but I suppose it's possible. Anything's possible-well, usually.
What can i substitue for amaretto?
I suppose that is possible.
Is it possible for oil to have a solution in solid or gaseous form?
I suppose that is not possible.
Does avocado interfere with antibiotics?
I suppose that this is not possible.
Is faster-than-light travel possible?
So far, this has not been achieved; there are reasons to suppose that it will never possible.So far, this has not been achieved; there are reasons to suppose that it will never possible.So far, this has not been achieved; there are reasons to suppose that it will never possible.So far, this has not been achieved; there are reasons to suppose that it will never possible.
Suppose you have two vectors that have different magnitudes can the vectors sum ever be zero?
No. The largest possible resultant magnitude is the sum of the individual magnitudes.The smallest possible resultant magnitude is the difference of the individual magnitudes.
Can a house fly be blind?
I suppose it's possible.
Is it possible to get married under the Eiffel Tower?
I suppose if you book it.
Would a claustrophobe be scared of hugs?
Usually not but I suppose it is possible.
Is micro-miniaturization possible?
I suppose that anything is possible, although I doubt that micro mini is very probable.
Is suppose a conjunction?
No, "suppose" is not a conjunction. It is a verb that is often used to introduce a hypothetical situation or to express a belief or assumption.
