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Author Question: A company installs 5,000 light bulbs. Each bulb has an average life of 500 hours with a standard ... (Read 111 times)

TFauchery

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on: Jun 16, 2021

Question 1

Let x be a continuous random variable that is normally distributed. Find the requested probability using the given mean and standard deviation.

The mean is μ = 137.0 and the standard deviation is σ = 5.3.
Find P(134.4 ≤ x ≤ 140.1).
◦ 0.0311
◦ 1.0311
◦ 0.4069
◦ 0.9069

Question 2

A company installs 5,000 light bulbs. Each bulb has an average life of 500 hours with a standard deviation of 100 hours. The life of each bulb is approximated by a normal curve. Find the number of bulbs that can be expected to last less than 500 hours.
◦ 2400 bulbs
◦ 2500 bulbs
◦ 3000 bulbs
◦ 1000 bulbs
Calculus and Its Applications ¦ Bittinger, Ellenbogen, Surgent ¦ 11th Edition
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Marked as best answer by TFauchery on Jun 16, 2021

JCABRERA33

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Reply #1 on: Jun 16, 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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TFauchery

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Reply 2 on: Jun 16, 2021
Excellent

rachel

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

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