A student wanted to establish whether physical inactivity increases the likelihood of  students having high blood pressure levels. The student decided that above 150 mmHg would be regarded as high blood pressure.  Twenty students were randomly selected for blood pressure screening and the results were as below; 120,120,150,140,130,150,160,120, 125,130,142, 129,141,120,110,123,135,120,140,142, 124 a) Construct a box and whisker plot for the data and Explain the meaning of the quantities displayed on the box & whisker plot

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