NEW YORK (Reuters) - Och-Ziff Capital Management Group LLC will pay $400 million and a subsidiary will plead guilty to resolve U.S. probes into its involvement in bribes paid to African officials, two people familiar with the matter said on Wednesday.In a deal expected to be announced on Thursday, the largest publicly traded U.S. hedge fund firm will enter a deferred-prosecution agreement with the U.S. Department of Justice while a subsidiary will plead guilty, the sources said.