The following are all characteristics of conspiracy thinking theorists EXCEPT: Select one: a. They make faulty cause-effect relationships b. They believe in the evil intent of influential individuals and groups of people d. Thest their theories using the scientific method e. They value anecdotal evidence from friends and acquaintances more than evidence-based findings by traine researchers and scientists.

Suppose that the walking step lengths of adult males are normally distributed with a mean of 2.3 feet and a standard deviation of 0.4 feet. A sample of 83 men's step lengths is taken. Step 1 of 2 : Find the probability that an individual man's step length is less than 2.1 feet. Round your answer to 4 decimal places, if necessary.

Solve the system of equations by the addition method. \( \left\{\begin{array}{c}5 x+5 y=55 \\ -2 x-3 y=-29\end{array}\right. \) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution is \( \square \). (Simplify your answer. Type an ordered pair.) B. There are infinitely many solutions; \( \{(x, y) \mid 5 x+5 y=55\} \) or \( \{(x, y) \mid-2 x-3 y=-29\} \). C. There is no solution; \( \} \) or \( \varnothing \).

Solve the system of equations using the substitution method. \( \left\{\begin{array}{l}x+y=12 \\ x=2 y\end{array}\right. \) Select the correct choice below and, if necessary, fill in the answer box to complete your choice, A. The solution of the system is \( \square \). (Type an ordered pair.) B. There are infinitely many solutions; \( \{(x, y) \mid x+y=12\} \) or \( \{(x, y) \mid x=2 y\} \). There is no solution; \( \} \) or \( \varnothing \).

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.

a. \( 2 \frac{1}{3} \div \frac{5}{6} \)