Solve. 4x=21-1 x=

Solve the inequality for . (Only pick one option)

Solve . Solve for x.

True or false. 

Simplify.  The simplified answer is

To investigate whether there is an association between building type and day of the week, we will use data from the Energy Consumption dataset. The dataset Energy Consumption is designed for predicting energy consumption based on various building features and environmental factors for a number of new building projects. The table below presents multiple building types and the day of the week measurement was taken. The data are randomly selected.   The row and column proportions tables are shown below as well as two side-by-side bar charts (listed as Graph A and Graph B) of the data. Match the proportion table with the correct side-by-side bar chart and correct statement.      

For comic book movies, there have been 31 theatrical films released in the Marvel Cinematic Universe and 11 theatrical films released in the DC Extended Universe as of January 1st, 2022. The distributions of the theatrical runtime (in minutes) is presented below:  Calculate the proportion of DC movies that have runtime greater than or equal to 150 minutes.

A statistics professor saw 46 movies using MoviePass since March 2023. For each of the 46 movies that were watched, the genre of each movie was recorded. A graph of this data is presented below.     The percentage of the movies watched that were Thriller or Adventure is approximately:

A sample of STAT 250 students from the Fall 2024 semester shows an association between the number of classes attended and their final exam score.  On average, students who attended class less earned a lower score on the final exam.     What is a possible confounding variable that would be the most likely to help explain this relationship?

Use the following for the next three questions.   The distribution of daily minimum temperature in New York City in February for a sample of 120 days is known to be bell-shaped and symmetric.  The sample mean minimum temperature is 27 degrees F and the standard deviation is 6 degrees F.   Use the 95% Rule to determine the interval that about 95% of the data will fall within.  All intervals below are presented in degrees F.