The time, in minutes, people spent reading a music blog in a…

The time, in minutes, people spent reading a music blog in a day was analyzed.  Construct a frequency distribution, a frequency histogram, and a frequency polygon using five classes:  7          39        13        25        8          22        0          2          18        2 30        7          35        12        15        8          6          5          29        0 11        39        16        15                                                                   

You are conducting a survey on the number of pets per househ…

You are conducting a survey on the number of pets per household in your region.  From a sample with n=40, the mean number of pets per household is 15 pets and the standard deviation is 2 pets.    Using Chebychev’s Theorem, determine at least how many households have between 5 and 25 pets.