Pearson's product moment correlation may be used to summarize the association between variables measured at what level(s)

3. meena and ala are two friends. meena has a habit of using new pens almostevery day, whereas ala believes in getting a refill for her pen instead of buyinga new pen even though her friends make fun of her.a) which out of two practices would you follow and why? b) which value is ala depicting?

If the traffic light is out or malfunctioning, treat it like

How must you react to a flashing yellow traffic light?