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Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 56 hours and a standard deviation of 3.3 hours. With this information, answer the following questions.
(a) What proportion of light bulbs will last more than 60 hours?
(b) What proportion of light bulbs will last 53 hours or less?
(c) What proportion of light bulbs will last between 58 and 61 hours?
(d) What is the probability that a randomly selected light bulb lasts less than 45 hours?
which of the folling pearson correlations shows the greatest strength
What is the inherent meaning and justification of cross-multiplication as it applies to solving an equation or inequality? In other words, why does cross-multiplication work?
The answer to Spanning sets, Determine spanning sets for each of the four fundamental subspaces associated with the matrix
This question is basically belongs to Mathematics and it is about finding the point of intersection of two straight lines.
1. integrate the following2. for each of the following pairs of functions graph each one together in desmos show on
does the distribution of the educators highschool college and graduate school attending the conference differ than what
if alpha an r-cycle show that r is the least positive k such that alpha^k=(1)
Calculate the number of bridge hands which contain and calculate the probability of being dealt each of the hands in parts (a), (b), and (c). Give your answers to 5 decimal places.
Should scarce healthcare resources be divided according to need, or ability to pay, or potential for economic productivity, or some other criteria?
How do the requirements for coverage for domestic partners, such as length of the relationship compare with requirements for benefits of married couples?
The amount of contamination remaining in two different wells t days after a chemical spill, in parts per billion (ppb), is given by r(t)=350(0.94)t and s(t)=550(0.91)t. Solve the equation so that they are set equal to eachother
Find the remainder when the number is divided by 105?
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