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Suppose the probabilities that a new car battery functionsFor at least 20, 000km is 0.8For at least 40, 000km is 0.5,For at least 60, 000km is 0.1.
(i) Given that the battery still works at 20, 000 km, what is the probability that it lasts for at least another 20, 000km?
(ii) Given that the battery still works at 20, 000 km, what is the probability it lasts for at least another 40, 000km?
A processor of carrots cuts green top off each carrot, washes the carrots, and inserts six to a package. Twenty packages are inserted in a box for shipment. To test weight of the boxes, a few were checked.
a rangefinder is used to measure the distance of a ridge from a lookout point. the average of 12 readings is 2215 ft.
question 1according to a recent survey the average urban person consumes 1.5 kg of food per day. is this figure also
A sample of 20 pages was taken without replacement from the 1,591-page phone directory Ameritech Pages Plus Yellow Pages On each page, the mean area devoted to display ads was measured (a display ad is a large block of multicolored illustrations, map..
suppose that for a set of numeric data we have the following sample statisticsx with bar on top equal 10y with bar on
Of all 3 - 5 year old children, 71% are enrolled in school. If a sample of 400 children are randomly selected, what is the probability that at least 300 will be enrolled in school.
a paper studied various aspects of bus service and presented data on travel times from several different routes. the
Assume that the bricks used are randomly chosen from a population of bricks whose mean length is 10 inches and whose standard deviation is 1/32 inch.
let y1 y2 ... yn be independent random variables such that each yi has an exponential distribution with mean bi. let
an airline carriers 100 passengers and has doors with a height of 78 inch. height of men are normally distributed with
1.two coins are tossed and the total number of heads is counted. which of the following would be a legitimate
Following are the data collected. Should the head of the Bureau be concerned about the time taken at lunch by employees? Why?
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