Left: histogram of the time delay Δt between the nonthermal HXR flare peak and the onset of the SEE event at STEREO. The black histogram refers to all events, while the green one shows the distribution for the events that are potentially associated with CMEs. The dotted lines indicate the median of the distributions. Middle: histogram of the longitude separation ΔΦ between the flare location and the extrapolated footpoint of the magnetic field line connecting STEREO to the Sun. Right: correlation plot of the time delay Δt and the longitude separation ΔΦ. The colors denote the degree of anisotropy of the in situ electrons. C indicates the linear correlation coefficient.