What is the probability that the marble will be green?
0.8
What is the probability of drawing a red marble out of the bag?
The probability of drawing a red marble = 2/5.
What is the probability of getting at least one red marble?
(The chance of getting at least one red marble, on the other hand, is 3/12 + 3/12 – (3/12 × 2/11), or only 10/22.)
What is the probability that both marbles are red?
Note that there are 16 total marbles. A is simply a set of sequential events. On the first, you have 10/16 chances to draw a red. Supposing this red is not replaced, the chance of drawing a second red will be 9/15; therefore, the probability of A is (10/16) * (9/15) = 0.375.
What is the probability that both are red?
In conclusion, the probability that both of the balls are red is 1/10.
What is the probability that all three marbles are the same color?
Adding these three different ways to get three marbles of the same color, we get a total probability of (120 + 60 + 24)/2730 = 204/2730 = 34/455.
What is the probability of selecting two blue marbles?
The chances of drawing a blue marble are 4/9. Therefore, the chance that both marbles drawn are blue is the chance that the first one is blue times the chance that the second one is blue. Remember, math is always trying to trick you. It wants you to try and do the whole big problem at once, which can be difficult….
What is the probability that both of the marbles drawn are blue?
1 Answer. The probability of picking a blue marble from the blue urn is 2/6=1/3….
Is bootstrap with or without replacement?
Bootstrapping is any test or metric that uses random sampling with replacement (e.g. mimicking the sampling process), and falls under the broader class of resampling methods. Bootstrapping assigns measures of accuracy (bias, variance, confidence intervals, prediction error, etc.) to sample estimates.
What is sampling with and without replacement?
What’s the Difference? When we sample with replacement, the two sample values are independent. Practically, this means that what we get on the first one doesn’t affect what we get on the second. In sampling without replacement, the two sample values aren’t independent.
Which sampling method requires a frame?
In both simple random and stratified sampling, it is necessary for a list of the individuals in the population being studied (the frame) to exist. These sampling techniques require some preliminary work before the sample is obtained. A sampling technique that does not require a frame is systematic sampling.
What is a disadvantage of using a large sample size?
A lot of time is required since the larger sample size is spread in the manner that the population is spread and thus collecting data from the entire sample will involve much time compared to smaller sample sizes. …
What is the difference between sample and sampling frame?
Sampling Frame vs. A sampling frame is a list of things that you draw a sample from. A sample space is a list of all possible outcomes for an experiment….
What is sample frame in research methodology?
From Wikipedia, the free encyclopedia. In statistics, a sampling frame is the source material or device from which a sample is drawn. It is a list of all those within a population who can be sampled, and may include individuals, households or institutions.
What is sample frame error?
Sample Frame Error – Occurs when a sample is selected from the wrong population data. Non-Response Error – Occurs when a useful response is not obtained from the surveys. It may happen due to the inability to contact potential respondents or their refusal to respond.
What is the meaning of sample frame?
A sampling frame is a list or other device used to define a researcher’s population of interest. The sampling frame defines a set of elements from which a researcher can select a sample of the target population. Comprehensiveness refers to the degree to which a sampling frame covers the entire target population….