muscrat123
  • muscrat123
@heretohelpalways
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
yes?
muscrat123
  • muscrat123
Maggie has 7 tiles with pictures of plants and 2 tiles with pictures of animals. Maggie keeps all the tiles on a mat with the pictures hidden and mixes them up. She then turns one tile face up and finds the picture of a plant on it. She removes this tile from the mat and turns over another tile without looking. What is the probability that the second tile that Maggie turns over has a plant on it? 22.2% 28.6% 65.0% 75.0% i think it may be A
anonymous
  • anonymous
the new probability would be 6/8

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muscrat123
  • muscrat123
so D?
anonymous
  • anonymous
which is equal to....
anonymous
  • anonymous
yup D
muscrat123
  • muscrat123
Ben has a 40% chance of being selected as the president of the school sports club and a 70% chance of being elected editor of the school magazine. What is the probability that Ben will be selected as the president of the sports club and will also be elected editor of the school magazine? 0.3% 1.1% 14% 28%
muscrat123
  • muscrat123
i dont know how to solve problems like this
anonymous
  • anonymous
do 4 over 10 * 7 over 10
anonymous
  • anonymous
\[\frac{ 4 }{ 10 }*\frac{ 7 }{ 10 }\]
anonymous
  • anonymous
28/100
muscrat123
  • muscrat123
28%
anonymous
  • anonymous
yup
muscrat123
  • muscrat123
Max tossed a fair coin 3 times. What is the probability of getting heads in the first two trials and tails in the last trial? 4 over 8 3 over 8 2 over 8 1 over 8
anonymous
  • anonymous
do \[\frac{ 1 }{ 2 }*\frac{ 1 }{ 2 }*\frac{ 1 }{ 2 }\]
anonymous
  • anonymous
I think
anonymous
  • anonymous
I am really not sure about this one
anonymous
  • anonymous
1/8
muscrat123
  • muscrat123
but 13% isnt an option
anonymous
  • anonymous
1/8 is an option...
muscrat123
  • muscrat123
oh we are talking about the most recent question. i thought we were talking about the plant question
anonymous
  • anonymous
|dw:1438870916332:dw|
muscrat123
  • muscrat123
At a game booth, a student gets a box of candy as the prize for winning a game. The boxes come in four colors: white, red, green, and blue. There are 10 boxes of each color. All the boxes are equally likely to be given away as prizes. Which expression shows the probability of the first winner receiving a white box and the second winner also receiving a box of the same color? 10 over 40 multiplied by 9 over 39 10 over 40 multiplied by 10 over 39 10 over 40 plus 9 over 39 10 over 40 plus 10 over 39
anonymous
  • anonymous
you must NOT add these fractions, so that should eliminate 2 answer
anonymous
  • anonymous
and a white box was taken out leaving the probability of a white box to be chosen 9/39
anonymous
  • anonymous
so it would be A
anonymous
  • anonymous
anymore questions?
muscrat123
  • muscrat123
sorry it took a while to respond - had to do an interview for flvs A box has 5 beads of the same size, but all are different colors. Tina draws a bead randomly from the box, notes its color, and then puts the bead back in the box. She repeats this 3 times. What is the probability that Tina would pick a red bead on the first draw, then a green bead, and finally a red bead again? 1 over 625 1 over 180 1 over 150 1 over 125 @heretohelpalways
anonymous
  • anonymous
that's okay
anonymous
  • anonymous
\frac{ 1 }{ 5 }*\frac{ 1 }{ 5 }*\frac{ 1 }{ 5 }
anonymous
  • anonymous
do 1/5*1/5*1/5
anonymous
  • anonymous
to get 1/125
anonymous
  • anonymous
was the interview a DBA?
muscrat123
  • muscrat123
b4 the interview yes
anonymous
  • anonymous
lol
muscrat123
  • muscrat123
i had to do an actual interview though
muscrat123
  • muscrat123
could u help with some more?
anonymous
  • anonymous
sure
muscrat123
  • muscrat123
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
anonymous
  • anonymous
can you make the table a bit cleaner?
anonymous
  • anonymous
do 62+8+0
anonymous
  • anonymous
to get 70%
anonymous
  • anonymous
find 70% of 1,200
anonymous
  • anonymous
to get the answer: 840
muscrat123
  • muscrat123
so the final answer is 840?
anonymous
  • anonymous
yup
muscrat123
  • muscrat123
Jack wants to know how many families in his small neighborhood of 60 homes would help organize a neighborhood fund-raising party. He put all the addresses in a bag and drew a random sample of 30 addresses. He then asked those families if they would help organize the fund-raising party. He found that 12% of the families would help organize the party. He claims that 12% of the neighborhood families would be expected to help organize the party. Is this a valid inference? No, this is not a valid inference because he asked only 30 families No, this is not a valid inference because he did not take a random sample of the neighborhood Yes, this is a valid inference because he took a random sample of the neighborhood Yes, this is a valid inference because the 30 families speak for the whole neighborhood
anonymous
  • anonymous
it is valid since he took a random sample
muscrat123
  • muscrat123
The 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 @heretohelpalways
anonymous
  • anonymous
median, since outliers don't affect medians so C
muscrat123
  • muscrat123
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 D correct @heretohelpalways ?
muscrat123
  • muscrat123
and also: Four students did a survey to find the pizza topping sixth-grade students prefer. The table below shows the method each student used to conduct the survey: Student Method Troy Asked 100 students at random from his seventh-grade class what their favorite pizza topping is Dacia Asked 100 eighth-grade students at random what their favorite pizza topping is Julia Asked 100 sixth-grade students at random what their favorite pizza topping is Tanner Asked 100 third-grade students at random what their favorite pizza topping is Which student's survey is most likely not biased? Troy Dacia Julia Tanner
anonymous
  • anonymous
D is correcct
anonymous
  • anonymous
and JUlia is not biased because she is the only one who asked sixth graders
anonymous
  • anonymous
oops Julia
muscrat123
  • muscrat123
The following table shows the data collected from a random sample of 100 middle school students on the number of hours they play indoor games every week: Weekly Duration of Indoor Games Time (in hours) 0–3 4–7 8–11 12–15 Number of Students 4 42 52 2 There are 1,300 students in the school. Based on the sample proportion, how many students in the school would be expected to play indoor games for at least four hours every week? 546 598 702 1,248 \ @heretohelpalways
anonymous
  • anonymous
ooops
anonymous
  • anonymous
96% of 1,300
anonymous
  • anonymous
1248
muscrat123
  • muscrat123
The dot plot below shows the amount of time two random groups of students took to brush their teeth: 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. @heretohelpalways
muscrat123
  • muscrat123
group s?
anonymous
  • anonymous
I am not really sure...
muscrat123
  • muscrat123
The 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 C?
anonymous
  • anonymous
try calculating the mean
anonymous
  • anonymous
of each
muscrat123
  • muscrat123
The 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 C? and document.rtf is a different question
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