Can a jury that has deliberated without reaching a verdict be discharged?

^7. "A jury that has deliberated may be discharged without reaching a verdict when, 'at the expiration of such time as the court may deem proper, it satisfactorily appears that there is no reasonable probability that the jury can agree.' ( 1140.) Whether the jury has had sufficient time to deliberate, and whether there is no reasonable probability of a verdict, are determinations committed to the sound discretion of the trial court. [Citations.]" (People v. Price (1991) 1 Cal.4th 324, 467.)