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Author Question: Apply the 68-95-99.7 rule to answer the question.The systolic blood pressure of a group of ... (Read 82 times)

Arii_bell

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Question 1

Apply the 68-95-99.7 rule to answer the question.

The lifetimes of light bulbs of a particular type are normally distributed with a mean of 310 hours and a standard deviation of 9 hours. What percentage of the bulbs have lifetimes that lie within 2 standard deviations to either side of the mean?
◦ 95%
◦ 99.7%
◦ 68%
◦ 98%

Question 2

Apply the 68-95-99.7 rule to answer the question.

The systolic blood pressure of a group of 18-year-old women is normally distributed with a mean of
and a standard deviation of 13 mmHg. What percentage of 18-year-old women in this group have a systolic blood pressure that lies within 3 standard deviations to either side of the mean?
◦ 95%
◦ 34%
◦ 68%
◦ 99.7%


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Marked as best answer by Arii_bell on Jan 18, 2020

mmpiza

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Arii_bell

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Reply 2 on: Jan 18, 2020
Thanks for the timely response, appreciate it


jojobee318

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Reply 3 on: Yesterday
Wow, this really help

 

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