please help to deal with 3 choice questions, thank you so much~

Question 1 In a pie chart, each category has a fraction of the pie calculated by Not yet answered Select one: Marked out of 0.50 a. (Observations in category) / 180 cross out P Flag question b. (Observations in category) / (Observations in data set) x 360 cross out c. (Observations in category) / (Observations in data set) x 180 cross out d. (Observations in category) / 360 cross out Question 3 A bar chart Not yet answered Select one: a. Graphically plots out data points Marked out of 0.50 b. Shows data using a pie graph P Flag question c. Serves alcohol d. Shows data by category Question 4 Which of the following are false? Not yet answered Marked out of 0.50 Select one: a. Histograms are formatted similar to Bar charts P Flag question b. Good Histograms have between 5 and 20 classes c. Histograms can't have outliers d. Middle classes should all be the same size