![dshood2298](/avatars/45938.jpg)
dshood2298
27.05.2021 •
Mathematics
The table shows the results of a survey at a local school. The survey asked 7th and 8th graders if they pack their lunches or if they buy their lunches in the school cafeteria. Here are the results.
47 seventh graders were surveyed and 19 of them pack their lunches.
52 eighth graders were surveyed and 33 of them buy their lunches.
Construct a two-way frequency table for the data.
Solved
Show answers
More tips
- F Food and Cooking How to Quickly Put your Child to Sleep?...
- F Food and Cooking Discover the Benefits and Properties of Dates...
- C Computers and Internet Dynamically Assigned IP Address: What Is It and How Does It Work?...
- S Style and Beauty How to Get Rid of Acne: Scientifically Proven Methods...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
Answers on questions: Mathematics
- M Mathematics C. What is the percent change from $33 to $30?...
- M Mathematics Help please! Graph the image of the figure after a dilation with a scale factor of 1/4 centered at (5, – 5). Use the polygon tool to graph the triangle by connecting all its...
- M Mathematics Which of the following is an irrational number?...
- M Mathematics Lets see who could answer these questions eh? ( ̄y▽, ̄)╭ ill give...
- M Mathematics Why must there be at least 2 lines on any given plane?...
- M Mathematics Tell whether the statement true or false. If it is false, give a counter example. Can anyone help me with these? Thank you so much if you can!...
- M Mathematics Which equation represents this proportional relationship y=3x y=1/6x y=6x y=1/3x...
- M Mathematics If anyone could please help fast i will mark as brainiest...
- M Mathematics A person is 5.5 feet tall. Do you know their height in inches?...
- M Mathematics Through the vertex Q of a parallelogram PQRS, line QLM is drawn to meet PS at L and RS at M. Show that ar(triangle SLR)= ar (triangle PLM)....
Ответ:
The table is shown in the attached image
Row One: 19, 28, 47Row Two: 19, 33, 52Row Three: 38, 61, 99The commas are not to be entered in any of the boxes. Just the numbers only.
=====================================================
Explanation:
"47 seventh graders were surveyed" means that 47 goes in the last value of the first row. This is the total of the 7th graders. Of this total, 19 pack their lunches (ie bring them from home). That indicates 47-19 = 28 seventh graders buy their lunch.
For row one, we have the values: 19, 28, 47 in that exact order when going from left to right.
------------------
We use the same idea for the 8th graders.
52 total eighth graders, 33 buy their lunch
52-33 = 19 pack their lunch
For row two, the values from left to right are: 19, 33, 52 in that exact order.
To get the values in row 3, we add up everything that's over top of it.
Meaning for column 1, we have 19+19 = 38 total students who pack their lunch. In column 2, there are 28+33 = 61 people who buy their lunch. Lastly, column 3 we have 47+52 = 99 students overall.
For row three, the values from left to right are: 38, 61, 99
Note that adding the first two items of row three gets us 38+61 = 99
It's not a coincidence that this is happening. This is just another way to get the grand total of 99. You could also add up the four values that are not in the total column or total row to get 19+28+19+33 = 99. Again, this is not a coincidence we end up with 99.
Refer to the table below to see a summary.
Ответ:
switch x and y
Step-by-step explanation: