I work in marketing, so I often see stats that reference smartphone penetration/usage.
Which of the following is correct? I've seen both.
65% frequently check items on their phone while in-store
65% frequently check items on their phones while in-store
What about:
Their confidence, camaraderie and try-it-once attitudes define every aspect of their lifestyle.
Their confidence, camaraderie and try-it-once attitudes define all aspects of their lifestyles
And:
Chinese male millennials depend heavily on their phones when shopping in-store.
Chinese male millennials depend heavily on their phone when shopping in-store.
Or:
65% say their phone is the most valuable tool when they’re in-store
65% say their phones are the most valuable tools when they’re in-store
Please help, this is so confusing! I, for the most part, get collective subject and plural/singular verb usage, but am often confused about the plurality and singularity of the object nouns.
Thanks in advance!