anonymous
  • anonymous
help!
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@freckles @aaronq
anonymous
  • anonymous
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anonymous
  • anonymous
@heretohelpalways

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More answers

anonymous
  • anonymous
@Michele_Laino
anonymous
  • anonymous
@Nnesha
anonymous
  • anonymous
We know that there are 33 students in all, and 12 boys. Do you know the answer now?
Michele_Laino
  • Michele_Laino
possible outcomes= 21+12=... favorable outcomes= 12
anonymous
  • anonymous
b?
anonymous
  • anonymous
no
anonymous
  • anonymous
let's think about it
anonymous
  • anonymous
the denominator of you probability would be 33 since there are 33 people in all
Michele_Laino
  • Michele_Laino
no, I'm sorry the definition is: probability= favorable outcomes/ possible outcomes
anonymous
  • anonymous
ok
anonymous
  • anonymous
d?
Michele_Laino
  • Michele_Laino
21 is the number of girls
anonymous
  • anonymous
no, since 21 is the number of girls
imqwerty
  • imqwerty
evryone like to help u :D
anonymous
  • anonymous
the number of boys would be 12
anonymous
  • anonymous
ok so A?
anonymous
  • anonymous
no
anonymous
  • anonymous
ok so then C?
anonymous
  • anonymous
remember that I told you denominator of your probability would be 33
anonymous
  • anonymous
yes, C is correct
anonymous
  • anonymous
yay!
Michele_Laino
  • Michele_Laino
yes! it is option C
anonymous
  • anonymous
The probability that an event will occur is 100%. Which of these best describes the likelihood of the event occurring? Likely Certain Unlikely Impossible
imqwerty
  • imqwerty
total boys = 12 total girls=21 total children =12+21 =33 probability(a boy name is drawn) =total number of favourable events/total no. of events P=12/33 :)
anonymous
  • anonymous
well, if it 100%, then it would be certain
Michele_Laino
  • Michele_Laino
100% is the maximum value for a probability
HelloKitty17
  • HelloKitty17
http://openstudy.com/study#/updates/55ca40bde4b0c5fe980543e9 Come on my question after I need help!!!
anonymous
  • anonymous
so b?
Michele_Laino
  • Michele_Laino
yes!
imqwerty
  • imqwerty
:)
anonymous
  • anonymous
yay!
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HelloKitty17
  • HelloKitty17
People I need our help!! I have been working on an assignment the whole day
anonymous
  • anonymous
i need more help! im about to get kicked out of my class! ::(
anonymous
  • anonymous
@Michele_Laino
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imqwerty
  • imqwerty
sure event has probability = 1 likely event has probability>=0.5 unliky event has probability<0.5 impossible events have probability=0 so which one is the event given in the question ??
anonymous
  • anonymous
um, unlikely?
Michele_Laino
  • Michele_Laino
and 2/3 is greater than 0.5
imqwerty
  • imqwerty
2/3=??
anonymous
  • anonymous
c?
imqwerty
  • imqwerty
2/3=0.6666.... so which category does it fall into??
anonymous
  • anonymous
likely
anonymous
  • anonymous
b
Michele_Laino
  • Michele_Laino
correct!
imqwerty
  • imqwerty
yes thats the answer :)
Michele_Laino
  • Michele_Laino
it is likely not certain
anonymous
  • anonymous
)A spinner is divided into sections of equal size, of which some are red, some are blue, and the remaining are green. The probability of the arrow landing on a section colored red is 50%. The probability of the arrow landing on a section colored blue is 10%. What is the probability of the arrow landing on a section colored green? 10% 40% 50% 60%
Michele_Laino
  • Michele_Laino
the sum of all probabilities has to be equal to 100%
anonymous
  • anonymous
ok
anonymous
  • anonymous
40%?
Michele_Laino
  • Michele_Laino
yes!
anonymous
  • anonymous
yay!
anonymous
  • anonymous
)Marcus flipped a coin 800 times and it landed heads up 560 times. What is the relative frequency of the coin landing heads up based on the results of this experiment? 30% 70% 3% 7%
anonymous
  • anonymous
70%?
imqwerty
  • imqwerty
have u tried these questions ???
anonymous
  • anonymous
@Michele_Laino
imqwerty
  • imqwerty
yes 70% is correct :)
anonymous
  • anonymous
yay!
anonymous
  • anonymous
A bag contains 50 marbles, 10 of which are blue, 8 are red, 20 are green, and 12 are purple. Marcie takes a marble out of the bag, records the color, and returns it to the bag. How many red marbles should she expect after 500 trials? 80 100 120 200
anonymous
  • anonymous
120?
anonymous
  • anonymous
@Michele_Laino
Michele_Laino
  • Michele_Laino
the probability to get a red marble is 8/50
Michele_Laino
  • Michele_Laino
so the favorable outcomes are, probability times possible outcomes: \[\Large \frac{8}{{50}} \cdot 500 = ...?\]

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