Question

The following table shows the data collected from 2 random samples of 100 students from an after-school club regarding their favorite outdoor activity:
Sample Water Sports HikingFishing Total
1 50 35 15 100
2 50 40 10 100
Which of the following observations can be made about the number of students in the club who prefer water sports?
It is more than the numberof students who prefer hiking and fishing combined.
It is less than the number of tudents who prefer fishing.
It is equal to the number of students who prefer hiking and fishing combined.
It is less than the number of students

Answer 1

@Skielerlucas04

Answer 2

is there a graph or table with this?

Answer 3

ur discription is weird

Answer 4

:/

Answer 5

no, like i dont know what kids like to do what

Answer 6

Sample Water Sports Hiking Fishing Total
1 50 35 15 100
2 50 40 10 100

Answer 7

thats the graph^

Answer 8

ohhhh ok ok i got it

Answer 9

C, it is equal to the number of students that like hiking and fishing

Answer 10

is it o if i send the question in parts its easier

Answer 11

no, do it all together

Answer 12

The dot plots below show the distances traveled by two groups of bikers:
:

Two dot plots are labeled Group A and Group B. The horizontal axis is labeled Distance Traveled and marked from 15 to 40 at increments of 5 for both dot plots. Group A shows 9 dots on 15, 8 dots on 20, 3 dots on 25, 6 dots on 30, 4 dots on 35. Group B shows 10 dots on 20, 6 dots on 25, 4 dots on 30, 9 dots on 35 and 6 dots on 40.
Which of the following inferences can be made using the dot plots?

There is no overlap between the data.
The range of the two groups is different.
Group A has a higher mean than group B.
Group B has a higher mean than group A.

Answer 13

can you screenshot in and send it?

Answer 14

how?

Answer 15

do u have a mac?

Answer 16

nope

Answer 17

what type of computer do u have

Answer 18

@amandacross

Answer 19

chromebook

Answer 20

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=how+to+screenshot+on+chromebook

Answer 21

its complicated

Answer 22

ok nvm

Answer 23

<img src=" http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_practice_m8_g8_c1.jpg " alt=

Answer 24

there ya go

Answer 25

:)

Answer 26

can you re post the question so i dont have to keep scrolling up

Answer 27

Which of the following inferences can be made using the dot plots?

There is no overlap between the data.
The range of the two groups is different.
Group A has a higher mean than group B.
Group B has a higher mean than group A.

Answer 28

?

Answer 29

the means are :
Group A=23
Group B=29.3

Answer 30

that should give you your answer

Answer 31

??

Answer 32

it's D

Answer 33

The profits earned in a year by some companies in a city are shown below:


Company Profit
A $160,000
B $140,000
C $130,000
D $1,120,000
E $150,000


Based on the data, should the mean or the median be used to make an inference about the profits earned by these companies?
Mean, because it is in the center of the data
Median, because it is in the center of the data
Mean, because there are no outliers that affect the mean
Median, because there is an outlier that affects the mean

Answer 34

@Skielerlucas04

Answer 35

im here, dont worry

Answer 36

this might take awhile

Answer 37

thats fine

Answer 38

it's D

Answer 39

thanks.

Answer 40

The ages of two groups of dance students are shown in the following dot plots:
src=" http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_practice_m8_g10_c1.jpg "

The mean absolute deviation (MAD) for group X is 3.07 and the MAD for group Y is 5.25. Which of the following observations can be made using these data?

Group X has less variability in the data.
Group X has greater variability in the data.
Group Y has a lower range.
Group Y has a lower mean.

Answer 41

im trying

Answer 42

ok

Answer 43

it's not D

Answer 44

ok

Answer 45

im pretty sure it's A

Answer 46

ok

Answer 47

Jake wants to compare the mean height of the players on his favorite badminton and basketball teams. He creates the dot plots shown below:

src=" http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_practice_m8_g9_c2.jpg "
The mean absolute deviation is 1.74 inches for the badminton team and 3.02 inches for the basketball team. Which of the following conclusions can be drawn from the data?

The badminton players are all taller than the basketball players.
The basketball players are all taller than the badminton players.
There is more variability in the badminton team member heights.
There is more variability in the basketball team member heights.

Answer 48

@Skielerlucas04

Answer 49

and ya, the other one was A

Answer 50

ok

Answer 51

it's B

Answer 52

the ne i just sent you?

Answer 53

ya

Answer 54

<img src=" http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_practice_m8_g7_c2.jpg "

Based on visual inspection of the dot plots, which grade, if any, appears to have the higher mean score?

Grade 6
Grade 7
Both groups show about the same mean score.
No conclusion about mean score can be made from the data.

Answer 55

grade 6

Answer 56

anymore?

Answer 57

yes

Answer 58

how many?

Answer 59

5

Answer 60

5 more?

Answer 61

Four students did a survey to find the ice cream flavor sixth-grade students prefer. The table below shows the method each student used to conduct the survey:


Student Method
Jane Asked 100 sixth-grade students at random what their favorite ice cream flavor is
Ken Asked 100 students at random from his seventh-grade class what their favorite ice cream flavor is
Sasha Asked 100 eighth-grade students at random what their favorite ice cream flavor is
Kevin Asked 100 third-grade students at random what their favorite ice cream flavor is


Which student's survey is most likely not biased?
Jane
Ken
Sasha
Kevin

Answer 62

ok i think it's B but im gonna check

Answer 63

ok

Answer 64

? @Skielerlucas04

Answer 65

ok i got B

Answer 66

The following table shows the data collected from a random sample of 100 middle school students on the number of hours they play outdoor games every week:

Weekly Duration of Outdoor Games

Time (in hours) 0–2 3–5 6–8 9–11
Number of Students 30 62 8 0


There are 1,200 students in the school. Based on the sample proportion, how many students in the school would be expected to play outdoor games for at least three hours every week?
744
840
960
1,104

Answer 67

744

Answer 68

3 more right?

Answer 69

<img src=" http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_practice_m8_g11_c2.jpg "

Based on visual inspection of the dot plots, which of the following groups, if any, shows a greater average time required to brush their teeth?

Group R
Group S
Both groups show about the same average time.
No conclusion about average time can be made from the data.

Answer 70

yes

Answer 71

group R

Answer 72

Sue wants to know how many families in her small neighborhood of 50 homes would volunteer to help at a neighborhood animal shelter. She put all the addresses in a bag and drew a random sample of 25 addresses. She then asked those families if they would volunteer to help at the shelter. She found that 18% of the families would volunteer to help at the shelter. She claims that 18% of the neighborhood families would be expected to help at the animal shelter. Is this a valid inference?

Yes, this is a valid inference because the 25 families speak for the whole neighborhood
Yes, this is a valid inference because she took a random sample of the neighborhood
No, this is not a valid inference because she only asked 25 families
No, this is not a valid inference because she did not take a random sample of the neighborhood

Answer 73

this is the second to last one?

Answer 74

yup

Answer 75

B,Yes, this is a valid inference because she took a random sample of the neighborhood

Answer 76

The following table shows the data collected from four random samples of 50 male students from a small middle school regarding their sport preferences:

Sport Preferences

Sample # Basketball Baseball Swimming Tennis Total
1 10 31 6 3 50
2 12 32 5 1 50
3 13 30 4 3 50
4 11 28 7 4 50


Based on the results in the table, which sport is preferred by the majority of male students in the samples?
Basketball
Baseball
Swimming
Tennis

Answer 77

last one!!!!!!!!!!! :D

Answer 78

ill let you do it ;)

Answer 79

um no

Answer 80

lol im joking gosh

Answer 81

ok.

Answer 82

<3!!!!

Answer 83

there is one more after this

Answer 84

oh ok

Answer 85

theres 1w questions

Answer 86

*12

Answer 87

good for me ;)

Answer 88

do the table like the other ones? this ones hard to read

Answer 89

Sample # Basketball Baseball Swimming Tennis Total
1 10 31 6 3 50
2 12 32 5 1 50
3 13 30 4 3 50
4 11 28 7 4 50

Answer 90

it wont let me

Answer 91

baseball

Answer 92

Noah wants to predict who will be selected as the sixth-grade treasurer for student council. Which of the following groups should Noah survey to make his prediction?

The first 100 students from an alphabetical list of the entire school
The first 100 students from an alphabetical list of sixth graders
One hundred random students from the entire school
One hundred random students from the sixth grade

Answer 93

is there anything else to this question?

Answer 94

no

Answer 95

@Skielerlucas04

Answer 96

??

Answer 97

its d