The accompanying data came from a study of collusion in bidding within the construction industry. No. Bidders No. Contracts 2 3 4 5 6 7 8 9 10 11 USE SALT 8 20 26 18 12 8 6 7 4 3 (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 X X (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 X X

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The accompanying data came from a study of collusion in bidding within the construction industry.
No. Bidders No. Contracts
2
3
4
5
6
7
8
9
10
11
USE SALT
8
20
26
18
12
8
6
7
4
3
(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
X
X
(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
X
X
Transcribed Image Text:The accompanying data came from a study of collusion in bidding within the construction industry. No. Bidders No. Contracts 2 3 4 5 6 7 8 9 10 11 USE SALT 8 20 26 18 12 8 6 7 4 3 (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 X X (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 X X
Expert Solution
Step 1

The data is as follows,

No. Bidders No. Contracts
2 8
3 20
4 26
5 18
6 12
7 8
8 6
9 7
10 4
11 3

The probability is the ratio of the number of favorable outcomes of the event to the total number of outcomes.

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