Mean = ∑x/n
Mode = most frequently occurring score
Median = arrange score in ascending/descending order. Middle score is median (50% percentile). If there are two different middle scores, find their mean.
1. disagree
2. agree
1. What are the mean, median, mode of the Data sets given the altitude of lakes in feet:- 12,-9,-14,-39,-49,-49,-18, and -43?
A. Mean=-28.5,median=-29.1,Mode=-49,range= 40*
B. Mean=-29.1, median=-49, Mode=-28.5,range= 41
C. Mean=-49,median=-29.1, Mode=-28.5,range= 41
D. Mean=-29.1,median=-28.5, Mode=-49, range= 40
2. Given the data set 12, 39, 21, 18, 24, 17, 12, 25:
a. What is the outlier in that data?
b. What is the mean with the outlier?
c. What is the mean without the outlier?
A. 12; 21; 18.4
B. 12; 18.4; 21
C. 39; 21; 18.4*
D. 39; 18.4; 21
10 answers
**ANSWER: A mean = –28.5, median = –29.1, mode = –49, range = 40
First put them in order
- 49, - 49 , - 43 , -39 , -18, -14, -12, -9
Add the two middle numbers -39 and -18, it equals -57
Divide - 57 and 2, it equals - 28.5 <--- MEAN
Second add all the numbers together, it equals - 233, then divide by 8, which equals
- 29.1 <---MEDIAN
MODE is the number that happens most, which is -49 <--- MODE
The range is -49 - ( -9 ) = - 40 <-----RANGE
First put them in order
- 49, - 49 , - 43 , -39 , -18, -14, -12, -9
Add the two middle numbers -39 and -18, it equals -57
Divide - 57 and 2, it equals - 28.5 <--- MEAN
Second add all the numbers together, it equals - 233, then divide by 8, which equals
- 29.1 <---MEDIAN
MODE is the number that happens most, which is -49 <--- MODE
The range is -49 - ( -9 ) = - 40 <-----RANGE
1) A
2) C
3) B
4) C
5) B
6) C
7) A
8) C
9) A
10) A
11) C
12) D
13) B
14) D
15) C
16) D
17) B
18) You can make a stem-and-leaf plot as frequency table for "The chart below shows the average number of movies seen per person in selected countries. "
0 / . 5
1 / . 2 , . 3 , .3 , . 5
2 / . 2 , . 2 , . 2
3 / 0 , 0
4 / .5
19.) Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 9 students who have Mr. Green for math and nothing else. Use the Venn diagram below: How many students take exactly 2 classes with Mr. Green?
Answer: 26 students take exactly 2 classes check the work below.
25 - ( 7 + 3 + 11) Use order of operations or pemdas
25 - ( 21 ) = 4 ** students who take both Band and Choir
Add 11 + 7 + 3 + 4 + 17 + 9 = 51
Subtract 57 - 42 = 15***Students take Math and Choir
Add 15 + 4 + 7 , these are the sections in the Venn Diagram where two circles share the same space.
15 + 4 + 7 = 26 ***** ANSWER
26 students take exactly two classes.
20.) Another stem-and-leaf plot problem.
| Percentage of
Countries | Households with Color Television
9| 3
6| 9
9| 5
8| 8
9| 4
6| 4
9| 2
8| 8
1| 00
9| 1
9| 7
2) C
3) B
4) C
5) B
6) C
7) A
8) C
9) A
10) A
11) C
12) D
13) B
14) D
15) C
16) D
17) B
18) You can make a stem-and-leaf plot as frequency table for "The chart below shows the average number of movies seen per person in selected countries. "
0 / . 5
1 / . 2 , . 3 , .3 , . 5
2 / . 2 , . 2 , . 2
3 / 0 , 0
4 / .5
19.) Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 9 students who have Mr. Green for math and nothing else. Use the Venn diagram below: How many students take exactly 2 classes with Mr. Green?
Answer: 26 students take exactly 2 classes check the work below.
25 - ( 7 + 3 + 11) Use order of operations or pemdas
25 - ( 21 ) = 4 ** students who take both Band and Choir
Add 11 + 7 + 3 + 4 + 17 + 9 = 51
Subtract 57 - 42 = 15***Students take Math and Choir
Add 15 + 4 + 7 , these are the sections in the Venn Diagram where two circles share the same space.
15 + 4 + 7 = 26 ***** ANSWER
26 students take exactly two classes.
20.) Another stem-and-leaf plot problem.
| Percentage of
Countries | Households with Color Television
9| 3
6| 9
9| 5
8| 8
9| 4
6| 4
9| 2
8| 8
1| 00
9| 1
9| 7
SOFIA IS WRONG I GOT 4/17!!!
"Just me" you need to make sure you are in connections academy from CALIFORIA they mix up the tests by state............ duh. if you are going to cheat , know your facts. also how about studying or reaching out to your teacher. You deserve your 4/17 haha
Agreed WashingtonJ
Lesson 13: Using Graphs to Analyze Data Unit Test Unit 3
1. D-Mean=-29.1, Median=-28.5, Mode=-49, Range=40
2. C-39;21;18.4
3. B-Walk=7, Biked=4, Bus=5, Family car=5, Car pool=3
4. A-22=1, 23=2, 24=0, 25=2, 26=0, 27=0, 28=1, 29=3, 30=1
5. C-5/2
6/4 7
7/4 6
/1 7 9
9/3
10/8
11/4
6. C-Median for Team 1:12, Median for Team 2:11
7. A (Sorry I don't know how to show this one to ya'll)
8. C (Don't know how to show this one either)
9. C-About 75% scored higher; about 25% scored lower
10. A (Don't know how to this one either)
11. D-Negative trend; the water level in a tank in the hot sun over time
12. C-(6,8.4)
13. A-20
14. B-2 stamps
15. B-90
16. B-15
17. A-20%
18. D ( Don't know how to show this one either)
19. A ( Just explain why you choose that answer)
100% Hope this helps!
1. D-Mean=-29.1, Median=-28.5, Mode=-49, Range=40
2. C-39;21;18.4
3. B-Walk=7, Biked=4, Bus=5, Family car=5, Car pool=3
4. A-22=1, 23=2, 24=0, 25=2, 26=0, 27=0, 28=1, 29=3, 30=1
5. C-5/2
6/4 7
7/4 6
/1 7 9
9/3
10/8
11/4
6. C-Median for Team 1:12, Median for Team 2:11
7. A (Sorry I don't know how to show this one to ya'll)
8. C (Don't know how to show this one either)
9. C-About 75% scored higher; about 25% scored lower
10. A (Don't know how to this one either)
11. D-Negative trend; the water level in a tank in the hot sun over time
12. C-(6,8.4)
13. A-20
14. B-2 stamps
15. B-90
16. B-15
17. A-20%
18. D ( Don't know how to show this one either)
19. A ( Just explain why you choose that answer)
100% Hope this helps!
@My-ToNiceLyricGenius is right its just a bit different but you can tell which one is the answer when looking at the question :,)
can anyone help me with the typing??!!?!??!?!?!?!?!?
PLEASE SOMEONE PLEEEEASSE HELP ME WITH THE TYPING IM BEGGING YOU !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
19 answers