The normal quantile plot or a chi-squared test can be used to check for normality. For that, data are grouped into bins, converting numerical data into categorical data. The accompanying figure shows the normal quantile
plot of daily stock returns on the value-weighted total market index for a country. The accompanying table counts the number of returns falling into 8 intervals. The table includes the count expected under the assumption
that these data are normally distributed, using the sample mean x = 0.0009665 with SD = 0.0166. Complete parts a through e below.