25. Which of the following factors affect the movement of molecules across tho flasma membrane I the solubility of the molecules in lipid II the shape of molecules III the polarity of the molecules IV the size of molecules A I and III only B III and IV C I. III and IV

Each year, a group surveys 50,000 households to study internet usage. In one area of the study, the group is interested in finding out how many hours a day the household spends streaming video from the internet. Describe the five basic steps in a statistical study with an example of their application below. D. State the goal of your study. In this case, it is to discover how many households have internet access. Describe the second step in this statistical study. Choose the correct answer below. A. Choose a representative sample from the population. In this case, it would be choosing a small sample from the 50,000 households. B. Choose a representative sample from the population. In this case, it would be choosing a sample of 50,000 households. C. Redefine the goal of your study. In this case, we also want to discover how many hours per day a household spends checking email. D. Start collecting data. In this case, we randomly call phone numbers and ask them about their internet habits.

Each year, a group surveys 50,000 households to study internet usage. In one area of the study, the group is interested in inding out how many hours a day the household spends streaming video from the internet. Describe the five basic steps in a statistical study with an example of their application below. D. Start collecting data. In this case, we randomly call phone numbers and ask them about their internet habits. Describe the third step in this statistical study. Choose the correct answer below. A. Collect raw data from the sample and summarize these data by finding sample statistics of interest. In this case B. Discover if there is interest in this study. In this case, we ask other researchers if they would be interested in reviewing the collected data. C. Collect raw data from the sample and summarize these data by finding sample statistics of interest. In this case, it would be asking the households how many hours they spend streaming internet video and turning this data into an average. D. Estimate the data for the sample. In this case, we guess that, on average, a household spends 1.5 hours per day streaming internet video.

E Evaluate the function \( f(x)=x^{2}-8 x+3 \) at the given values of the independent variable and simplify

2. ? Yukarıdaki rasyonel sayımın ondalık gösterimi aşağıdakiterden hangısidı? \( \begin{array}{llll}\text { A) } 0.24 & \text { B) } 0.24 & \text { C) } 0.24 & \text { Di } 0.204\end{array} \)

A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 16 years with a variance of 16. If the claim is true, in a sample of 48 wall clocks, what is the probability that the mean clock life would be greater than 15.3 years? Round your answer to four decimal places.