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anonymous
 one year ago
help please!
anonymous
 one year ago
help please!

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Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2which group do you think has the higher mean??

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2uh, not quite, see how group B has more dots on the left side?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2that means that group B is going to have a smaller mean, so our answer is..?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The following table shows the data collected from a random sample of 100 middle school students on the number of hours they do household chores every week: Weekly Duration of Household Chores Time (in hours) 0–1 2–3 4–5 6–7 Number of Students 32 64 3 1 There are 1,500 students in the school. Based on the sample proportion, how many students in the school would be expected to do household chores for at least two hours every week? 480 960 1,020 1,440

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2take a look at the table, how many students do at least 2 hours of chores per week?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2not quite, think carefully... "at least 2" means anything more than 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0right and it says 23 hours is 64

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2there's more than that, though... look at the table again carefully...

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right, so we add them all up, giving us...?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2that's not what I meant, I meant to add the number of students...

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2there we go! now, we have (68 students/100) for our sample, let's multiply this by 1500 students to get our answer (68/100)*(1500) = ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The following table shows the data collected from four random samples of 50 students from a small middle school regarding the type of television shows they prefer to watch: Television Show Preferences Sample # News Music Movies Cartoons Total 1 2 12 6 30 50 2 3 10 5 32 50 3 5 13 7 25 50 4 6 19 8 17 50 Based on the results in the table, which type of television show is preferred by the majority of students in the samples? News Music Movies Cartoons

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2what do you think the answer is?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The price of some jewelry sets in a store are shown below: Store Price A $110,000 B $100,000 C $1,110,000 D $130,000 E $120,000 Based on the data, should the mean or the median be used to make an inference about the price of the jewelry sets in the store? Mean, because it is in the center of the data Median, because it is in the center of the data Median, because there is an outlier that affects the mean Mean, because there are no outliers that affect the mean

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2hint: is there an outlier?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2pay attention to my hint: is there an outlier?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2are you sure? there is one data point that is much larger than the others

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh wait.. there is an outlier

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right, so our answer is...?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Four students did a survey to find the ice cream flavor sixthgrade students prefer. The table below shows the method each student used to conduct the survey: Student Method Jane Asked 100 sixthgrade students at random what their favorite ice cream flavor is Ken Asked 100 students at random from his seventhgrade class what their favorite ice cream flavor is Sasha Asked 100 eighthgrade students at random what their favorite ice cream flavor is Kevin Asked 100 thirdgrade students at random what their favorite ice cream flavor is Which student's survey is most likely not biased? Jane Ken Sasha Kevin

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2hint: the goal is to find data for 6th graders, so our answer is...?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sue 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

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2this is a random sample, so...?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2whichever one has the greater MAD has the greater variability

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2read the problem carefully...

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2I really need sleep, how many more are there?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.05 quick ones :) and thats it .. i promise

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The following table shows the data collected from 2 random samples of 100 students each from an afterschool club regarding their favorite outdoor activity: Sample Canoeing Bike Racing Reading Total 1 40 35 25 100 2 45 40 15 100 Which of the following observations can be made about the number of students in the club who prefer canoeing? It is more than the number of students who prefer bike racing and reading combined. It is less than the number of students who prefer bike racing and reading combined. It is equal to the number of students who prefer reading. It is less than the number of students who prefer bike racing.

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2what do you think the answer is? just go through each choice and see which one is true

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2are you sure? is the number for canoing less than the number for bike racing?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2so d is not the answer, keep trying

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Noah wants to predict who will be selected as the sixthgrade 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

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2well, like always, we want a random sample, and we want 6th graders, so our answer is...?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2what do you think? which one has the higher mean?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2no, look at the graphs carefully... which one has more dots on the right side?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2like we've said before... higher mean absolute deviation means higher variability...

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2well, which one has the greater mean?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2yes, so our answer is A

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok thank you for everything :)

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2no problem, don't forget to medal. good night ~

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0goodnight! oh! can you answer these quick questions please ... really fast.. they are not problems they are just questions ..please :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What are scale drawing? Give an example.
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