Answer: A)Control : no photograph
Dependent: whether they returned it or not
Confounding:time of day
B) people have the need to see themselves as righteous so to raise their self esteem and maintain their image they’ll do something good
C)they valued their own interest ?? (Not sure)
D)maybe the ppl who picked up the wallets were young, so the older couple’s photograph would be an out group “them” compared to the young “us”
E)higher
Explanation:
Answer:
Standard Deviation of D: It cannot be determined from the information given because the scores are not independent.
Explanation:
Khan academy
I believe the answer is c
