Explaining 2 Polls With Conflicting Findings

The crowded field contending to succeed Mayor Michael R. Bloomberg in City Hall got an unexpected jolt last week from two polls with seemingly divergent findings. The first poll was accompanied by a news release proclaiming “Weiner Surpasses Quinn Among N.Y.C. Dems,” while a day later the other poll came out with a statement announcing “Quinn, Thompson, Weiner Tied in New York City Primary.”

How could two polls offer such conflicting narratives? [cont.]

Marjorie Connelly, New York Times