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In a recent year 23.3 of Americans smoked cigarettes. What is the probability that in a random sample of 200 Americans more than 50 smoke?
Wiki User
∙ 6y ago
It is approx 28%.
Wiki User
∙ 6y ago
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What distinguishes a probability sample from a non probability sample?
I believe you meant to ask: What distinguishes a random sample from a non random sample? A random sample means the selection or sampling from the population is by chance. Looking at the data, one might not be able to tell if the sample is random or selective. Consider a marketing survey which is included everytime you buy an item online. Random or non-random? It is a survey of recent customers, and probably a pretty good one. But it is not a random selection of all customers who have made purchases with clients.
Basic statistics for business and economics sixth edition quizzes?
in a recent survey 35% indicated chocalate was their favorite flavor of ice cream. Suppose we select a sample of 10 people and asked them to name their favorite flavor of ice cream. A. how many in the sample would you expect to say chocolate? B. What is the probability exactly 4 would of those in the sample name chocolate C. What is the probability four or more name chocolate
How can you tell if a z score is unusual?
z scores are assumed to have come from a normal population with mean zero and standard deviation one. So the farther a z score deviates from the mean of zero the more significant, or unusual, it must be taken to be.The measure of 'how significant' is the probability of getting a bigger z score.For example, the probability of getting a z score bigger than 1.96 is about 0.025, the probability of getting one bigger that 3.5 about 0.000233.Now the obvious problem is, how small is small? For a lot of scientific work either 0.05 is considered 'small enough'. Sometimes 0.01 is demanded. I notice that for recent Higg's boson work scientists have only accepted results associated with even smaller probabilities for some reason.When you need to calculate probabilities such as these you can use published tables, or there are various kinds of software for desktop use. I have just used wolframalpha.com on the web with the following kind of input:P[X
On a recent blood test for my liver my LDH count was 128 and my GGTP count was 87 what does that mean?
.
What do teenagers do more watch tv or surf the internet?
A recent study by a scientist from a college in Virginia says Internet is what kids use more. Due to phones and gadgets
What distinguishes a probability sample from a non probability sample?
I believe you meant to ask: What distinguishes a random sample from a non random sample? A random sample means the selection or sampling from the population is by chance. Looking at the data, one might not be able to tell if the sample is random or selective. Consider a marketing survey which is included everytime you buy an item online. Random or non-random? It is a survey of recent customers, and probably a pretty good one. But it is not a random selection of all customers who have made purchases with clients.
A recent survey found that 70 percent of all adults over 50 wear glasses for driving In a random sample of 10 adults over 50 what is the probability that at least six wear glasses?
.85 or 85%
What is the probability that exactly four vehicles will pass the nct test if a recent study reveals that 80 percent of all vehicles passed the nct test a random sample of 6 vehicles is selected?
The probability that exactly 4 out of 6 randomly selected vehicles will pass the test when the pass rate is 80% is approx 0.2458 (or nearly a quarter).
When would you use probability in everyday life?
Weather people use probability to predict weather in the future based on passed recent weather and by clouds and winds
What percentage of Americans have seen the ocean?
According to recent surveys 38% of Americans have seen the Ocean.
Why 51 percent a human offspring will be a female?
They will not. In recent years probability is less than 50%. The latest estimate is 48%
How many Americans are veterinarians?
Recent studies show that there are about72,720 veterinarians in America.
Which idea favors native born Americans over recent immigrants?
nativism
What idea specifically favor native born Americans over recent immigrants?
Nativism
What made Americans began to fear foreingners and recent immigrants?
September 1, 2001
Americans began to fear foreigners and recent immigrants because of the?
all of the answers are correct
Which idea specifically favors nstive born Americans over recent immigrants?
Nativism
