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Mathematics Clinic => Pre-calculus => Topic started by: neverstopbelieb on Feb 2, 2020

Title: Suppose that prices of a certain model of new homes are normally distributed with a mean of ...
Post by: neverstopbelieb 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 $149,100 and $150,900 if the standard deviation is $900.
◦ 34%
◦ 95%
◦ 68%
◦ 99.7%

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:

between $150,000 and $153,800 if the standard deviation is $1900.
◦ 99.7%
◦ 68%
◦ 34%
◦ 47.5%

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

Answer 1

68%

Answer 2

47.5%