Solve the problem.The way in which an interviewer asks a question about political party affiliation causes respondents to answer that they have no affiliation when they actually do. What type of problem has occurred?

Solve the problem.A study was designed to investigate the effects of two variables — (1) a student’s level of mathematical anxiety and (2) teaching method — on a student’s achievement in a mathematics course. Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 290 with a standard deviation of 50 on a standardized test. Assuming a mound-shaped and symmetric distribution, in what range would approximately 99.7% of the students score?

The bar graph shows the number of tickets sold each week by the garden club for their annual flower show.Approximately how many tickets were sold during week 2?

Solve the problem.A realtor is analyzing recent sale prices of 3 bedroom homes in her area. The mean sale prices of recent sales was $370 ,000 with a standard deviation of $50,000. Assuming no information concerning the shape of the distribution is known, what percentage of homes sold between $270,000 and $470,000?

Solve the problem.The amount of time workers spend commuting to their jobs each day in a large metropolitan city has a mean of 70 minutes and a standard deviation of 20 minutes. Assuming nothing is known about the shape of the distribution of commuting times, what percentage of these commuting times are between 30 and 110 minutes?

Solve the problem.An usher records the number of unoccupied seats in a movie theater during each viewing of a film. Identify the type of data collected.

The pie chart shows the percentage of votes received by each candidate in the student council presidential election. Use the pie chart to answer the question.Who got the most votes?

Solve the problem.The pie chart shows the classifications of students in a statistics class.What percentage of the class consists of freshman, sophomores, or juniors?

Solve the problem.A realtor is analyzing recent sale prices of 3 bedroom homes in her area. The mean sale prices of recent sales was $320 ,000 with a standard deviation of $40,000. Assuming no information concerning the shape of the distribution is known, what percentage of homes sold between $200,000 and $440,000?

Solve the problem.A realtor is analyzing recent sale prices of 3 bedroom homes in her area. The mean sale prices of recent sales was $310 ,000 with a standard deviation of $20,000. Assuming no information concerning the shape of the distribution is known, what percentage of homes sold between $270,000 and $350,000?