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204 exm1 f09

# 204 exm1 f09 - Math 2040 Exam 1 fall 2009 Name(Show your...

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Math 2040 Exam 1 fall 2009 Name_____________________________ (Show your work to receive credit ) 1) Circle all the following charateristics that apply to the histogram a) unimodal b) bimodal c) skewed to the right d) skewed to the left 2) According to the textbook which of the following measures is preferred as the measure of central location for qualitative dat. Circle your answer. a) mean b) median c) mode 3) When sampling from a normal distribution which of the following measures is most stable (i.e. has the least variation between samples). Circle your answer. a) mean b) median c) mode 4) For the data represented in the above histogram circle the best answer: a) The mean is likely larger than the median. b) The median is likely larger than the mean. c) It is not possible to determine if the median or mean will be larger. __________

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5) For the following data construct a two digit stem display with one digit leaves and arrange the leaves on each stem according to size. 263 270 272 242 263 251 284 265 230 267 271 254 283 269 240 284 6) What is the mean of the data in 4) ______________ What is the median of the data in 4) ______________ What is(are) the mode(s) of the data in 4)
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204 exm1 f09 - Math 2040 Exam 1 fall 2009 Name(Show your...

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