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in given problem determine the probability of getting a value within one standard deviation of the mean that is
in given problem suppose the possible values for x are now 0 2 4 with the same probabilities as before will the
for the probability functionx12345px1523215determine the mean the variance and the probability that the a value is less
for the probability function normal 0 false false false en-us x-none x-none
1 argue that the smallest observed value x1 as well as the the lower and upper quartiles satisfy the definition of a
1 the height of 10 plants is measured in inches and found to be 12 6 15 3 12 6 21 15 18 and 12 verify that normal 0
1 use the rules of summation notation to show that it is always the case thatsigmaxi - x 02 seven different
a weightlifters maximum bench press in pounds in each of six successive weeks was 280 295 275 305 300 290 find the
1 apply the boxplot rule for outliers to the values in the preceding problem2 consider the
1 verify that for the data in the previous problem the boxplot rule declares the values 20 240 and 250 outliers2 what
what is the typical pulse rate beats per minute among adults imagine that you sample 21 adults measure their pulse rate
1 the largest observation in the last problem is 49 if 49 is replaced by the value 200 verify that the sample mean is
1 for the observations63276589811verify that the sample mean trimmed mean and median are xmacr 65 xmacrt 67 and m
a class of fourth graders was asked to bring a pumpkin to school each of the 29 students counted the number of seeds in
1 for the observations in the previous problem compute the sample 20 winsorized variance2 in the previous problem would
1 based on a sample of 100 individuals the values 1 2 3 4 5 are observed with relative frequencies 02 03 01 025 015
for the values 0 1 2 3 4 5 6 the corresponding relative frequencies based on a sample of 10000 observations are 0015625
for a local charity the donations in dollars received during the last month were 5 10 15 20 25 50 having the
given exercise gave the following data values for the number of cds owned by 24 students in a statistics class in 1999
in each case specify which of the two variables is the explanatory variable and which is the response variable if it is
given exercise gave the following weights in pounds for nine men on the cambridge crew team1885 1830 1945 1850 2140
the interquartile range and the standard deviation are two different measures of spread which measure do you think is
use the old faithful dataset on the companion website it gives data for n 299 eruptions of the old faithful geysera
the data for this exercise are in the gss-08 dataset on the companion website the variable gunlaw is whether a
use the pennstate1 dataset on the companion website for this exercise the data for the variable hrssleep are responses