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If a certain theory has one "aspect" or "characteristic" that has a probability of 1/million that the aspect is not true. And then it has another completely separate characteristic that also has a probablitiy of 1/million of not being true. What is the "overall" probability that theory is not true. How are these two separate probabilities factored, are they just multiplied or is their some other relationship regarding their connection to the reality of the theory ? Thanks.
What is mode?Explain the three important methods of estimating the mode of a series.
5. The operating life of an Arctic Air portable cooler is normally distributed with mean 75 months and standard deviation 9 months. The manufacturer will replace any cooler that breaks during the guarantee period.
(a) If the guarantee period is for 64 months, what fraction of the coolers will the manufacturer have to replace?
(b) How long should the guarantee run if the manufacturer does not want to replace more than 2.5% of the coolers?
I have set of treatment cost for different diseases from Different hospitals, I wish to group the hospitals based on average cost of treatment. How can I use Cluster Analysis in SAS to do this? I am unable to guess what can be an XY plot because I just have two information 1) which hospital treatment was done 2) What was the cost of the treatment. Thanks
Two dice are thrown. What is the conditional probability of a total score of at least 8, given that one of the dice has thrown 4 .
A school at which amounts of money spent per week by a boarding school student for off-campus food is normally distributed with a mean of 12.74 and standard deviation of 2.88.
1. What proportion of boarding students spend more than $10.00 per week for off-campus food?
2. 30% of boarding students who spend the least amount of money for off- campus food, spend less than how many dollars per week?
3. 25 boarding students selected at random, what is the probability that their mean weekly spending is between $13.00-14.00?
A lottery consists of 300 lottery tickets. There are 20 tickets with some prize and only two of them with the grand prize. Alex bought 12 tickets. Find the probability that he won at least one grand prize if he won 5 prizes.
on 5-8 april 2012, abc news/washington post conducted a telephoen (landline and cell)poll of 933 adults to determine the approval of President Obama versus his Repulblican challenger Mitt Romney. they fouund that overall, obama was favored by 51%. of the 502 women, 286 preferred obama and of the 431 men, 189 preferred obama. do these data suggest that men and women favor president obama differently?
