Q and A for the topic: General

Kevin has already biked 4 km he will bike less than 16 km. Let’s look at the possible numbers of additional kilometers Kevin will bike by riding a inequality that can find X the number of additional kilometers Kevin will bike

Which of the following is a multiple of 8? a) 2 b) 4 c) 12 d) 16

23,4 and -7,-11 find slope

Find the equation of the line A, which passes through the points (-1,5) and (2,6) Where the slope of a line m is given as m = Y2 - Y1 ———— X2 - X1 And the formule for the line is given as Y - Y, = m (x-x,)

she earns a 7% commission on all sales on the before-discount, before-tax price the discount is applied to the after-tax price.If the store is having a clearance event and all items are 20% off and she has made $1630 in sales today, how much commission did she make if the tax rate where she lives is 10%

Let G = ⟨g⟩ be a cyclic group of order n = 480 = 253151, H be a subgroup of G, and m is the smallest natural number for which gm ∈ H. For which natural numbers m a) the index|G:H|ofGpoH sedelin2; b) the row|H|ofH sedelina2; c) the index|G:H|of G by H sedelina2 and sedelina3; d) the row|H|ofH sedline2 and isedline3.

81. There are 500 people working in a company. The company's departments consist of production, marketing and finance. There are 250 people working in the production department, 150 people in the marketing department and 100 people in the finance department. When a sample is created using the stratified sampling method for 50 randomly selected people from the company, how many people will the sample consist of from each stratum?

To control the quality of products produced in a factory, Samples will be taken from the last 1000 products produced by the factory. The products produced by the factory are divided into 4 different categories. is leaving. Cluster sampling as a sampling method method will be used and an equal number of products will be placed in each cluster. will be taken. Let the number of products in each cluster be 20. This In this case, how many clusters should be selected and any What is the probability of a product being selected?

How do you identify the Noel and alternative hypothesis?

15,9 ÷ 8,759

In 20 minutes Luis arrives from his house at the Santo Tomás Technical Training Center. What percentage and fraction of an hour does it take Luis to go from his house to Santo Tomás?

The average score for a sample of 45 of your students on a quiz was 52, while other sections that took the same quiz was 58. The standard deviation for your class’s scores is 3.7. Can you conclude that the population mean score for your class is different than the mean score for the rest of the sections?

Write a program that allows the user to enter an af grade and issues a message corresponding to each grade according to the grade entered: A-excellent D- enough B-good F- Not enough c-regular

In the agenda for the next fifteen days, the tasks that must be developed are assigned. Your boss asks you to divide the tasks into three stages. In the first stage, you must develop 2/7 of the tasks, in the second stage, 2/3 of them. what remains and in the third stage the rest, which corresponds to 20 hours. The hours used in the first and second stages are respectively:

3,4 and 5,2 finding the slope

Lost time accidents occur in a company at a mean rate of 0.8 per day. What is the probability that a number of lost time accidents occurring over a period of 9 days will be no more than 5? Round to the nearest four decimal places.

Tynne is doing a literature review to understand what may affect obsessive personality. Tynne finds multiple research studies that have used linear regression analyses, looking at different factors that predict obsessive personality. The best statistic that Tynne can extract from these papers’ results sections in order to compare results across the papers and find the strongest predictor of obsessive personality is: Question 7Answer a. F statistic b. T-statistic c. Unstandardized beta coefficient d. Standardized beta coefficient e. P-value

7+ 8

This ecological study will be conducted using data from two sources. Data will be analysed from Global burden of disease (www.healthdata.org) for prevalence of male infertility and smoking for age groups >15 from year 2012-2019 and the data from Eurobarometer (www.europa.eu/eurobarometer/) on E-cigarettes usage of the same age groups and year under study. In the Eurobarometer database, electronic cigarette use is typically measured through survey questions that assess individuals' self-reported behaviours and attitudes towards e-cigarette use but they generally aim to gather information on the prevalence and patterns of e-cigarette use among the surveyed population. The following statistical analysis will be planned with the aggregated data. Employing a linear regression model with the male infertility prevalence as the dependent variable and the e-cigarette usage as the independent variable. Each data point in the model will represent a specific EU country during a particular year. A suitable regression method will be used to estimate the coefficients of the regression equation which will help establish the relationship between male infertility and e-cigarette usage rates, accounting for the variability across the EU countries. Furthermore, if other predictor variables at the country level are identified and data is available, they may be added to the regression model. This will help improve the estimation of coefficients and enhance the overall understanding of the relationship between male infertility and e-cigarette usage rates across EU countries. The quality of the regression model will be examined by the goodness-of-fit measures. These metrics will indicate how well the model explains the variations in male infertility rates based on e-cigarette usage rates. The results of the linear regression analysis, including the significance and direction of the regression coefficients will determine if there is a statistically significant relationship between male infertility and e-cigarette usage rates among men aged >15 across the EU countries. Visualizations, such as scatter plots, to depict the relationship between male infertility prevalence rates and e-cigarette usage rates across the EU countries over the study period will be created. The results will be interpreted from the statistical analysis, including the strength, direction, and statistical significance of the regression.

What is the probability of rolling a six when rolling the dice three times?