Question
One sample of n=20 scores has a mean of M=50. A second sample of n=5 scores has a mean of Mean=10. If the two samples are combined, what is the mean
Answers
PsyDAG
Mean =∑x/n
50 = ∑x/20
∑x = 100
10 = ∑x/5
∑x = 50
Mean = 150/25 = ?
50 = ∑x/20
∑x = 100
10 = ∑x/5
∑x = 50
Mean = 150/25 = ?
Anonymous
cf23