![youby](/avatars/507.jpg)
youby
01.03.2021 •
Mathematics
A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.
Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89
Part 1: Calculate the mean of the group that did not study, rounded to the nearest tenth.
Part 2: Calculate the mean absolute deviation of the group that did not study, rounded to the nearest tenth.
Part 3: How many of the scores (from the group that did not study) are more than two mean absolute deviations from the mean?
Solved
Show answers
More tips
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
Answers on questions: Mathematics
- M Mathematics Easy question I need it rn it’s due tomorrow...
- M Mathematics Un circulo tiene una circunferencia de 47 pulgadas Redondeado a la pulgada más próxima, cuál es su diametro? A. 30 pulgadas B 15 pulgadas C. 8 pulgadas D. 7 pulgadas...
- M Mathematics Louisa is asking some classmates which Harry Potter book they liked the best. Which type of graph should Louisa use to help her record this data? histogram line plot circle...
- M Mathematics A vowel will be chosen when a letter is randomly picked from the word LIEU...
- M Mathematics What are solutions to x^2 - 2x + 49 = 11x + 7...
- M Mathematics Find the area of the figure to the nearest hundred...
- M Mathematics If XYZ - RST. find RS....
- M Mathematics A Cessna 185 files an average of 208 km in one hour how many meters can the cessna fly in one hour?...
- M Mathematics Daisy measured the heights of 20 plants ?...
- M Mathematics What is the answer to 2x+6=7x-14...
Ответ:
= 225 + 64 = 289
289 = 289
Hence its a right angled triangle
Hope it helps
Please mark me as the brainliest
Thank you