Well, that is an OPINION. Both God the Father and Jesus spoke of chance. I do not believe the Father or Jesus would speak of something that does not exist, as that would be misleading.
If the apostles believed that chance did not exist, there would be no need to pray for God to show them which man should be chosen as the successor of Judas. But that is exactly what they did.
Acts 1:24 And they prayed, and said, Thou, Lord, which knowest the hearts of all men, shew whether of these two thou hast chosen,
25 That he may take part of this ministry and apostleship, from which Judas by transgression fell, that he might go to his own place.
26 And they gave forth their lots; and the lot fell upon Matthias; and he was numbered with the eleven apostles.
If chance did not exist, and this lot was already determined, then there would be no need to pray for it. So obviously the apostles believed random chance exists, but wanted God's intervention in this particular lot.
In fact, if all things are determined, then why pray? Prayer cannot change anything if all things are already determined.
god knows already what we are going to ask Him for, already has the answer, but we need to come to Him, in order to get our fellowship deepened!
God could just hand over what we need when we need it, but has chosen to work in and thru prayer!