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Find the mean median and standard deviation of data set

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Reference no: EM131017296

1. From the pressure data below, make a dot diagram. Mark the location of the mean and standard deviation. (You can use Excel or MATLAB to do this by plotting x-y data where all of the y points are 0. Minitab and R can also do this.)

a. 25 28 29 35 37 37 42 44 45 47 49 56 87 91

2. Using the data from the strength of material tests below, find the mean, median, and standard deviation of the data set. Make the following types of plots.

a. Stem-and-leaf diagram

b. Histogram (bins of your choosing)

c. Box plot

Table 2-2 Compressive Strength of 80 Aluminum-Lithium Alloy Specimens

105

221

183

186

121

181

180

143

97

154

153

174

120

168

167

141

245

228

174

199

181

158

176

110

163

131

154

115

160

208

158

133

207

180

190

193

194

133

156

123

134

178

76

167

184

135

229

146

218

157

101

171

165

172

158

169

199

151

142

163

145

171

148

158

160

175

149

87

160

237

150

135

196

201

200

176

150

170

118

149

Reference no: EM131017296

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