Standard deviation of the mean on either side

Reference no: EM1396966

The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?

Reference no: EM1396966

Questions Cloud

Explain the roles of microorganisms in the rumen ecosystem : 4-Propylaminobenzoic acid (PABA) is a strong inhibitor of methanopterin, a key cofactor in the methanogenesis enzymes. From what you have learned about the cow rumen ecology.

Mean annual precipitation : What is the likelihood that the mean annual precipitation during 25 randomly picked years will be less than 90.8 inches?

Question based on benefit-cost analysis : What is your monthly loan payment? What is your yearly loan payment and what is your yearly depreciation? What is the book value of the property at the end of ten years?

What is so special about these lipids : Diglycerol tetraether membrane lipids can be found in many archaeal species. The extreme thermophiles contain almost exclusively this type of lipids in their membrane while the percentage of this type of lipids is much lower in the membrane of met..

Standard deviation of the mean on either side : The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?

Create problem solving skills in current local issues : How many times have we heard someone complaining about something occurring in our communities-but offering no solutions for problem? Create the problem-solving skills.

What might be responsible : Gram staining results of Deinococcus and Heliobacterium are opposite of their classification. Please explain. What might be responsible?

Distinguish between the term codon and anticodon : How many different kind of bases found on Dna? How many amino acids are attached to a single transfer RNA?

Percentage of light bulbs having life : If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours?

User Account

All Pages