The accompanying data came from a study of collusion in bidding within the construction industry. No. Bidders No. Contracts 2 8 3 20 4 26 5 17 6 13 7 8 8 6 9 7 10 4 11 3 A button hyperlink to the SALT program that reads: Use SALT. (a) What proportion of the contracts involved at most five bidders? At least five bidders? (Round your answers to four decimal places.) at most five bidders at least five bidders (b) What proportion of the contracts involved between five and 10 bidders, inclusive? Strictly between five and 10 bidders? (Round your answers to four decimal places.) between five and 10 bidders, inclusive strictly between five and 10 bidders (c) Construct a histogram/bar chart. A histogram has a horizontal axis labeled "Number of bidders" with values from 2 to 11 and a vertical axis labeled "Frequency" with values from 0 to 30. The histogram has 10 rectangles. Each rectangle is associated with a label and an approximate value as listed below. 2: 8 3: 20 4: 26 5: 17 6: 13 7: 8 8: 6 9: 7 10: 4 11: 3 A histogram has a horizontal axis labeled "Number of bidders" with values from 2 to 11 and a vertical axis labeled "Frequency" with values from 0 to 30. The histogram has 10 rectangles. Each rectangle is associated with a label and an approximate value as listed below. 2: 20 3: 26 4: 17 5: 13 6: 8 7: 8 8: 6 9: 7 10: 3 11: 4 A histogram has a horizontal axis labeled "Number of bidders" with values from 2 to 11 and a vertical axis labeled "Frequency" with values from 0 to 30. The histogram has 10 rectangles. Each rectangle is associated with a label and an approximate value as listed below. 2: 4 3: 3 4: 7 5: 6 6: 8 7: 8 8: 13 9: 17 10: 26 11: 20 A histogram has a horizontal axis labeled "Number of bidders" with values from 2 to 11 and a vertical axis labeled "Frequency" with values from 0 to 30. The histogram has 10 rectangles. Each rectangle is associated with a label and an approximate value as listed below. 2: 3 3: 4 4: 7 5: 6 6: 8 7: 13 8: 17 9: 26 10: 20 11: 8 Comment on interesting features. The distribution of number of bidders is ---Select--- skewed, ranging from a low of bidders to a high of bidders, with a typical value of around 4–5 bidders.