anonymous
  • anonymous
Help pls
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
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anonymous
  • anonymous
@jim_thompson5910 @dan815
jim_thompson5910
  • jim_thompson5910
do you have a TI calculator? Like a TI83?

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anonymous
  • anonymous
no :( @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
ok let me find one for you
jim_thompson5910
  • jim_thompson5910
here's one https://www.easycalculation.com/statistics/five-number-summary.php simply type in your numbers (one group at a time) and calculate
anonymous
  • anonymous
wat number is this for @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
it's for finding the five number summary
jim_thompson5910
  • jim_thompson5910
what five number summary do you get
anonymous
  • anonymous
how to find the iqr @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
IQR = Q3 - Q1
jim_thompson5910
  • jim_thompson5910
Q1 is the first quartile Q3 is the third quartile
anonymous
  • anonymous
so will it be 13 for Bryce and 1 for Brianna ?
jim_thompson5910
  • jim_thompson5910
I am not getting 13 for the IQR for Bryce. You made an error somewhere
jim_thompson5910
  • jim_thompson5910
you have the correct IQR for brianna
anonymous
  • anonymous
for Bryce I got 80 for the min. 85.5 for the FQ. 91 for the Med. 98.5 for the TQ and 100 for the max so when u subtract u get 13 for Bryce. what did u get @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
Bryce IQR = Q3 - Q1 = 98.5-81.5 = 17
jim_thompson5910
  • jim_thompson5910
btw the notation FQ and TQ should be replaced with Q1 and Q3
jim_thompson5910
  • jim_thompson5910
anonymous
  • anonymous
I see wea I went wrong thanks ...ok for number 2 I said Bryce should get it because he had the higher grades and iqr than Brianna...right? @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
I got this comparison
1 Attachment
jim_thompson5910
  • jim_thompson5910
They seem to be split 50/50 in terms of who has larger scores but Bryce does have larger Q3 and max values however, in terms of consistency, brianna is more consistent since her IQR is lower
anonymous
  • anonymous
so how should I word it @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
write out what you think and I'll look it over
anonymous
  • anonymous
the student I think should get the math award is Bryce because even though they are both split 50/50 for who has the higher grade he does have a higher IQR than Brianna which makes her more consistent. @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
having a larger IQR means things are more spread out which means that his grades aren't as consistent as brianna's grades the larger IQR is not a good thing. It's better to be consistent and aim for a good grade as well
anonymous
  • anonymous
number 3 @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
add up all of bryce's scores then divide by 8 (there are 8 numbers in bryce's list)
anonymous
  • anonymous
I got 90 @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
me too
anonymous
  • anonymous
that's the answer @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
yeah for xbar
anonymous
  • anonymous
do I go ion to number 4 @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
what do you mean?
anonymous
  • anonymous
that's it for number 3 can I go on to 4 @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
sure

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