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Mathematics Clinic => Grade 11 and 12 Mathematics => Topic started by: D2AR0N on Feb 2, 2020

Title: Suppose that prices of a certain model of new homes are normally distributed with a mean of ...
Post by: D2AR0N on Feb 2, 2020

Question 1

Suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000. Use the 68-95-99.7 rule to find the percentage of buyers who paid:

between $150,000 and $157,500 if the standard deviation is $2500.
◦ 34%
◦ 49.85%
◦ 99.7%
◦ 47.5%

Question 2

Suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000. Use the 68-95-99.7 rule to find the percentage of buyers who paid:

more than $151,600 if the standard deviation is $800.
◦ 47.5%
◦ 97.5%
◦ 95%
◦ 2.5%

Title: Suppose that prices of a certain model of new homes are normally distributed with a mean of ...
Post by: helenmarkerine on Feb 2, 2020

Answer 1

49.85%

Answer 2

2.5%

Title: Re: Suppose that prices of a certain model of new homes are normally distributed with a mean of ...
Post by: Nekea Easterling on Nov 27, 2020

thank you