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Author Question: A random variable X is normally distributed with mean 100 and standard deviation 20. Below what ... (Read 77 times)

sarasara

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on: May 26, 2021

Question 1

The random variable T has density function f(t), where f(t) = λ e-λt if t ≥ 0 and λ is a positive constant.  Find the standard deviation of T.
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Question 2

A random variable  X  is normally distributed with mean 100 and standard deviation 20.  Below what value of  X  does 25% of the probability lie?
◦ 90
◦ 89
◦ 85
◦ 87
◦ 83
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Marked as best answer by sarasara on May 26, 2021

Edwyer

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Reply #1 on: May 26, 2021
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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sarasara

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Reply 2 on: May 26, 2021
Excellent

amcvicar

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Reply 3 on: Yesterday
Wow, this really help

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