Mathematics, 27.10.2020 23:20 oof78
The life of light bulbs is distributed normally. The Standard deviation of the lifetime is 10 hours and the mean lifetime of a bulb is 560 hours. Find the probability of a bulb lasting for at most 578 hours. Round your answers to four decimal places.
Answers: 3
Mathematics, 21.06.2019 13:40
In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?
Answers: 1
Mathematics, 21.06.2019 16:30
Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.
Answers: 1
Mathematics, 22.06.2019 00:00
Jonathan puts $400 in a bank account. each year the account earns 6% simple interest. how much interest will be earned in 5 years?
Answers: 1
Mathematics, 22.06.2019 03:20
Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.
Answers: 3
The life of light bulbs is distributed normally. The Standard deviation of the lifetime is 10 hours...
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