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

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- anonymous

- anonymous

is there a graph or table with this?

- anonymous

ur discription is weird

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## More answers

- anonymous

:/

- anonymous

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

- anonymous

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

- anonymous

thats the graph^

- anonymous

ohhhh ok ok i got it

- anonymous

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

- anonymous

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

- anonymous

no, do it all together

- anonymous

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.

- anonymous

can you screenshot in and send it?

- anonymous

how?

- anonymous

do u have a mac?

- anonymous

nope

- anonymous

what type of computer do u have

- anonymous

- anonymous

chromebook

- anonymous

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

- anonymous

its complicated

- anonymous

ok nvm

- anonymous

- anonymous

there ya go

- anonymous

:)

- anonymous

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

- anonymous

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.

- anonymous

?

- anonymous

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

- anonymous

that should give you your answer

- anonymous

??

- anonymous

it's D

- anonymous

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

- anonymous

- anonymous

im here, dont worry

- anonymous

this might take awhile

- anonymous

thats fine

- anonymous

it's D

- anonymous

thanks.

- anonymous

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.

- anonymous

im trying

- anonymous

ok

- anonymous

it's not D

- anonymous

ok

- anonymous

im pretty sure it's A

- anonymous

ok

- anonymous

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.

- anonymous

- anonymous

and ya, the other one was A

- anonymous

ok

- anonymous

it's B

- anonymous

the ne i just sent you?

- anonymous

ya

- anonymous

- anonymous

grade 6

- anonymous

anymore?

- anonymous

yes

- anonymous

how many?

- anonymous

5

- anonymous

5 more?

- anonymous

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

- anonymous

ok i think it's B but im gonna check

- anonymous

ok

- anonymous

- anonymous

ok i got B

- anonymous

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) 0â€“2 3â€“5 6â€“8 9â€“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

- anonymous

744

- anonymous

3 more right?

- anonymous

- anonymous

yes

- anonymous

group R

- anonymous

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

- anonymous

this is the second to last one?

- anonymous

yup

- anonymous

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

- anonymous

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

- anonymous

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

- anonymous

ill let you do it ;)

- anonymous

um no

- anonymous

lol im joking gosh

- anonymous

ok.

- anonymous

<3!!!!

- anonymous

there is one more after this

- anonymous

oh ok

- anonymous

theres 1w questions

- anonymous

*12

- anonymous

good for me ;)

- anonymous

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

- anonymous

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

- anonymous

it wont let me

- anonymous

baseball

- anonymous

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

- anonymous

is there anything else to this question?

- anonymous

no

- anonymous

- anonymous

??

- anonymous

its d

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