anonymous
  • anonymous
How much money does a person spend at Sterbucks per visit? The amount is a normally distributed random variable with a mean of $8.50 and a standard deviation of $1.25 a) Find the probability that a random person spends more than $11
Statistics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
ANSWER IS !!!chicken!
anonymous
  • anonymous
A normally distributed graph is bell shaped and has 68% of the data normally show up within one standard deviation of the mean. 95% within two standard deviations of the mean, and 97.7% within 3 standard deviations. To find the probability of spending more than 11 dollars you need to find the probability to find how many standard deviations (1.25) away from the mean (8.5) is 11. (2). And then find the probability of being over 2 standard deviations away from the mean.
anonymous
  • anonymous
The answer is a decimal point in case you were wondering.

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KendrickLamar2014
  • KendrickLamar2014
@Swordsman1305 please stop joking. Be mature on OpenStudy. If your not going to answer correctly, then don't answer.
anonymous
  • anonymous
THANK YOU I blocked him @kendricklamar2014
KendrickLamar2014
  • KendrickLamar2014
You're Welcome, and that is a smart thing to do :)
anonymous
  • anonymous
How do i do that though? @kaladin

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