One hundred students recorded the number of texts they sent in a day. The table in the appendix shows the number of texts each student sent on a single day, as well as the total number of texts for all of the students and the sum of the squares of the differences in the data. a. Make a five class frequency histogram. (you don't need to make a frequency table)

b. Find the mean, median and mode of the data. How well does each measure describe the central tendency?

c. Calculate the standard deviation if these 100 students represent the entire population of students

d. Calculate the standard deviation if these 100 students represents only a sample of students.

e. Make a box plot of the data.

f. A second group of students was placed in a similar study. The average number of texts sent was 232 with a standard deviation of 24. Compare these first and second group of students with respect to their texting practises.

Number of Texts Per Day 73 123 151 173 86 124 151 173 86 124 153 173 89 133 154 173 96 134 155 175 97 134 155 177 98 134 156 179 99 135 157 182 100 136 158 182 102 138 159 183 103 139 160 184 103 139 161 185 105 140 161 187 110 140 164 187 112 142 164 187 112 144 164 190 116 144 164 193 116 144 165 193 119 145 165 193 120 147 168 195 121 147 169 197 121 148 169 208 122 148 170 214 122 149 171 218 123 149 171 300 EX 14967 E(x-m) 121230.11