Suppose the following data represent the ratings (on a scale from 1 to 5) for a

Question

Suppose the following data represent the ratings (on a scale from 1 to 5) for a certain smart phone game, with 1 represe omework rating. Complete parts (a) through (d) below. Quizzes & Study Pla Grade StatCrun Chapter C Tools for S 0.098 2 0.113 0.207 0.161 5 0.421 (Round to three decimal places as needed.) Multimedia (b) Draw a probability histogram. Choose the correct graph below. Purchase OA Pearson T 0.5 Discusion 0.3 Course T OB. O c. 0.5 0.4- 0.3- 0.2 0.1 0.4 0.4n 0.2 0.1 1 2 3 4 5 1 2 3 4 5 12345 (c) Compute and interpret the mean of the random variable X. Enter your answer in the answer box and then click Check Answer. 2 Clear All parts emaining

Explanation / Answer

From the data given, the corresponding graph is B because it matches with the probabilities provided

Mean is x*p(x)= 1*0.098+2*0.113+3*0.207+4*0.161+5*0.421 =3.694

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