Question: Important ideas from the text p.338 -343 : Application 5.2 How much do college grades vary ? Indiana University Bloomington posts the grade distributions for

Important ideas from the text p.338 -343 : Application 5.2 How much do college grades vary ? Indiana University Bloomington posts the grade distributions for its courses online .2 Students in Business Statistics in a recent semester received 45.7 % As , 36.2 % Bs 13.8 % Cs, 3.2 % Ds, and 14 1.1 % Fs. Choose a Statistics 101 student at random . The student's grade on a four -point scale (with A = 4) is a random variable X with this probability distribution : Value 0 2 3 4 Probability 0.011 0.032 0.138 0.362 0.457 1. Make a histogram of the probability distribution . Describe its shape 2. Calculate and interpret the mean of X. Show work . 3. The standard deviation is 0.879 . Interpret the standard deviation

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