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The monthly profits (in Rs) of 100 shops are distributed as follows :
Profits
0-100
100-200
200-300
300-500
500-600
600-800
No. of Shops
19
21
30
40
10
12
Calculate mode of the distribution.
A large bank has 4500 accounts holders in a particular branch. The rupees amount of these accounts are known to be normally distributed with a mean of Rs. 60,000 and a standard deviation of Rs. 1000.
A professor (of something other than Statistics!) distributed the following histogram to show the distribution of grades on his 200-point final exam. Comment on the display.
an exit poll of 1000 randomly selected voters found that 515 favored candidate a. is the race too close to call? answer
1.suppose x is a continuous random variable taking values between 0 and 1 and having a probability distribution
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The sample mean is 2.59 and the sample standard deviation is .66. Conduct the following test using 95% level of confidence.
find the sampling distribution and pdfs of ysub1 and ysubn for random samples of size n from a continous uniform
Find the probability that the injured person is female. P( P( )=? E. Find the probability that the injured person is female and was hurt at work. P( P( )=? F.
In a survey of 100 people who had recently pur- chased motorcycles, data on the following variables was recorded: Gender of purchaser
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Do the two stem and leaf plots look similar? Do you think this could be a viable method for telling whether different articles were written by different authors?
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P22, the 22-percentile. This is the temperat..
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