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Author Question: A set of data items is normally distributed with a mean of 60. Convert the data item to a z-score, ... (Read 184 times)

Starlight

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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:

less than $145,600 if the standard deviation is $2200.
◦ 2.5%
◦ 95%
◦ 97.5%
◦ 47.5%

Question 2

A set of data items is normally distributed with a mean of 60. Convert the data item to a z-score, if the standard deviation is as given.

data item: 70;  standard deviation: 10
◦ 10
◦ 70
◦ 6
◦ 1


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Marked as best answer by Starlight on Feb 2, 2020

1_Step_At_ATime

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Starlight

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Reply 2 on: Feb 2, 2020
:D TYSM


nathang24

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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