The Histogram below represents age groups, and the frquency with which they travel in a year. What is the combined frequency of 25 – 35 year olds?

In the Getting Started Module for this course, you were required to review proctoring information that explains how a test could be proctored if the instructor requires the test to be completed remotely. The content explained that your test session would be recorded with a camera and microphone. Do you have to turn OFF your phone for every math test in college? Be alone? Have a calculator for this course?  

A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below.81, 71, 202, 113, 269, 55, 248, 242, 100 Find the median number of newspapers sold.

A tennis player makes a successful first serve 75% of the time. If they serve 10 times, what is the probability that they get exactly 9 successful first serves in? Assume that each serve is independent of the others. Show your work on your paper.

Express the confidence interval (0.482, 0.52) in the form of   ± E.

Scores on a test have a mean of 69 and a standard deviation of 4.2. David has a score of 81. Convert the score to a z score.

Minutes To Eat Breakfast A survey of “How long does it take you to eat breakfast?” has these results:   Minutes: 0 1 2 3 4 5 6 7 8 9 10 11 12 People: 6 2 3 5 2 5 0 0 2 3 7 4 1 Which means that 6 people take 0 minutes to eat breakfast (they probably had no breakfast!), 2 people say they only spend 1 minute having breakfast, etc. Here is the dot plot:   How many people eat breakfast in Under 5 minutes?    

On a test, 82% of the questions are answered correctly. If 82 questions are correct, how many questions are on the test?

The following frequency distribution represents the scores on a math test. Find the class midpoint of scores for the interval 40-59. Scores Number of students 50-59 2 60-69 4 70-79 6 80-89 15 90-99 5

Find the sample standard deviation for the given sample data, use 1-variable statistics on your TI-84 (83). 81, 71, 202, 113, 269, 55, 248, 242, 100