need help with algebra questions? details below. need answers with work shown.

Please complete the following questions. It is important that you show all work you did to solve the problems when you submit your work. This includes any calculations, diagrams, or graphs that helped you solve it.

1. OPEN ENDED Sketch a positively skewed graph. Describe a situation in which you would expect data to be distributed this way.
2. Writing in Math Use the information on page 737 (attached below) to explain what statistics a teacher should tell the class after a test. Include the mean, median, and mode of the given data set and which measure of central tendency you think best represents the test scores and why. How will the measures of central tendency be affected if Mr. Dent adds 5 points to each score?
3. Writing in Math Use the information on page 762(attached below) to explain how surveys are used in marketing. Find the margin of error for those who spend $249 or less if 807 mothers were surveyed. Explain what this margin of error means.

NOTE: PLEASE USE WORD DOCUMENT FORMAT PLEASE, AND TYPED

GET READY for the Lesson
On Mr. Dent’s most recent Algebra 2 test, his students earned the
following scores.
72|70|77|76|90|68|81|86|34|94
71 84 89 67 19 85 75630 94
When his students ask how they did on the test, which measure of
central tendency should Mr. Dent use to describe the scores?
GET READY for the Lesson
A survey was
Back-to-School Clothes Spending
conducted asking
mothers how much $249 or less
they spend per student $250-5349
on back-to-school
$350 or more
10%
clothing. The results of Don’t know
the survey are shown.
20%
49%
When polling
organizations want
to find how the public
21%
feels about an issue,
they survey a small
portion of the
Source: Harris Interactive for Sears, Roebuck
population