Population size, technically the effective population size, is related to the strength of drift and the likelihood of inbreeding in the population. Small populations tend to lose genetic diversity more quickly than large populations due to stochastic sampling error (i.e., genetic drift). This is because some versions of a gene can be lost due to random chance, and this is more likely to occur when populations are small. Additionally, smaller population size means that individuals are more likely to breed with close relatives. In closed populations, individuals will be more closely related to each other compared to individuals in the previous generation. For example, in a hypothetical population consisting of only four individuals, if two pairs each produced two offspring (meaning that four new individuals are present in the next generation), the offspring must either mate with a sibling, a parent, or an individual from the other pair. Assuming they choose the non-sibling/non-parent option, all of the offspring in the third generation must mate with individuals that have the same grandparents or choose to forgo reproduction. Although this example is extreme due to the very small hypothetical population, the same patterns and forces are present in larger – albeit still small – populations.
Although the mechanism of the loss of genetic diversity due to inbreeding and drift is different, the effects on populations are the same. Both inbreeding and drift reduce genetic diversity, which has been associated with an increased risk of population extinction, reduced population growth rate, reduced potential for response to environmental change, and decreased disease resistance, which impacts the ability of released individuals to survive and reproduce in the wild.
which model is more accurate and why? collecting data genotypically with a small population or phenotypically...
A. Explain which model in the “Data and Graphs” attachment is most accurate, based only on their graphical qualities and R² values, which can both be found in the “Data and Graphs” attachment. Note: R² is the square of the correlation coefficient between the data and the model. B. Given that the actual U.S. Population in 2010 was 308.75 million, explain which of the following models is most accurate, including computations of the relative errors, based only on the following...
Which of the following would be more accurate? A. Costs that are traced B. Not enough information is provided to answer the question. C. They are equally accurate. D. Costs that are allocated.
The following data represent the number of days absent per year in a population of 6 employees of a small company: 1 3 6 7 9 10 Assuming that you sample without replacement, select all possible samples of size n = 3 and construct the sampling distribution of the sample mean and the sample median. Compute the mean of all sample means and all sample medians. Are they equal? What is this property? Which estimator, the sample mean or the...
Plz show the solution
2. Propose a solution to check which modeling approach between M/M/1 and M/D/1 would be more accurate to model queue size at a right turn bay.
2. Propose a solution to check which modeling approach between M/M/1 and M/D/1 would be more accurate to model queue size at a right turn bay.
2. In a horizontal reservoir with the parameters & BHP given below, compare the rates from and explain which method is more accurate; you can make assumption for any additional data if is not given: 50 ft 5o No-Flow Boundary 400 ft P:-3000 psi K-150 md, Ke 75 md, B-1.2 Rbbl/stb , φ-0.2 -1.S cp, API-25, total compressibility 3x10 psi Pf 1200 psi Determine the production rate from the well using the van Poollen method (10 pnts) a) b) Determine...
Data is used by a very small online business to predict sales. This model has been reduced so that all p-values are less than 0.05. Outcome variable: monthly revenue, in dollars Predictor variables: · Holiday Season: dummy variable. Holiday season = 1 for November and December, and 0 for all other months · Marketing budget = budget, in dollars, spent on marketing (Projected monthly revenue) = 1,000 + 2,000*(Holiday Season) + 1.2*(marketing budget) + 0.5*(marketing budget)*(Holiday Season) What is the...
Type the following table, which has historical world population data, into sheet 2 in rows 1 and 2. Year 1000 1650 1800 1850 1900 1920 1930 World population, in millions 200 545 924 1171 1635 1834 2170 10. Graph the above population data using the same steps as in Exercise 1. Add an exponential trendline, being sure to include the equation and R2 value in the chart. 11. In row 3 calculate the values for population predicted for each of...
Which one is the best model for sales data and why? Method MAPE MAD MSE Naïve 12,5 1174,1 3910351 Naïve-Seasonal 4,5 359,9 219893 Moving Average k = 12 11 1011 2588085 Single Exponential Level = 0.1 11 1049 2770820 Holt’s Level = 0.1 Trend = 0.1 12 1123 2862244 Additive Winter’s Level = 0.3 Trend = 0.1 Seasonal = 0.5 2,7 223,2 93724,5 Multiplicative Winter’s Level = 0.4 Trend = 0.1 Seasonal = 0.5 2,2 186,7 72648,6 Additive( trend...
this is probability and statistic topic in a contemporary math
course.
please, need a full, accurate, and clear handwriting if you
prefer to handwrite.
thanks in advance.
2. The student council wants to know what activities would be supported by the student body. Decisions about activities are often made on the basis of survey information. Let's say that a survey was sent out to the student body via emails listed in the school's data base. The survey asked three questions:...
ess OY Parametric methods require mere restrictive assumptions about the level of data measurement and assumptions about the form of the probability distribution of the population. more fewer Determine whether the following statements are true or false. False Statement If a statistical method can be used with ordinal data, it is most likely a nonparametric method. Most parametric statistical methods require the use of ordinal data. One consideration in deciding whether to use parametric or nonparametric methods is whether O...