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Valentin
9 days ago
8

A class in advanced physics is composed of 10 juniors, 30 seniors, and 10 graduate students. the final grades show that 3 of the

juniors, 10 of the seniors, and 5 of the graduate students received an a for the course. if a student is chosen at random from this class and is found to have earned an a, what is the probability that he or she is a senior?
Mathematics
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Camry is a popular car manufactured by Japanese Car manufacturer, Toyota. Being one of the best selling cars in USA, all of the
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Answer:

Clarified below.

Detailed explanation:

A population refers to the entire group of data available for analysis, from which a smaller set is selected for closer scrutiny. This population can include individuals, articles, experiments, or measurements. Hence, a population represents a compilation of data pertaining to subjects that are linked by a shared feature.

A sample is a smaller, manageable portion derived from a larger group. It embodies the traits of a broader population. Samples are utilized in statistical tests when the overall population size is too vast to feasibly include all members in the analysis.

A parameter plays a significant role in statistical analysis. It refers to the attributes that characterize a specific population. Examples include population mean, population standard deviation, population proportion, etc.

When forming a statistical inference about the population being examined, the parameter value remains unknown because collecting data from every single individual in the population is unfeasible. Therefore, a sample is drawn from the population to draw conclusions about the parameter.

A statistic is the calculated value derived from this sample's characteristics. For instance, this includes sample mean, sample standard deviation, sample proportion, etc.

The matched pairs are represented as follows:

Population: 2. All Toyota Camry (2020 US) model vehicles.

Sample: 4. A selection of 117 Toyota Camry (2020 US) vehicles that were picked.

Parameter: 7. The mean mileage of all Toyota Camry (2020 US) model vehicles.

Statistics: 6. The city mileage averaged for the 117 sampled Toyota Camry (2020 US) cars, which is 27.8 mpg.

7 0
3 months ago
You are visiting a rainforest, but unfortunately,your insect repellent has run out. As a result, at each second, a mosquito land
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Answer:

Step-by-step explanation:

The probability that a mosquito lands on your neck per second is 0.5

The chance of it biting once it lands is 0.2

The likelihood that it does not bite after landing is 0.8

Therefore, the probability of a bite in one second is 0.5(0.2) = 0.01

This translates to a 1/100 likelihood of being bitten in just one second

Over the course of 100 seconds, the expected number of bites is =1

The anticipated interval between bites is 100

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3 months ago
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