PLEASE HELP. 20PTS...Fiona recorded the mean math exam grade for six random samples of students from the entire seventh-grade cl
ass. Sample Sample Mean Grade 1 65 2 92 3 78 4 45 5 95 6 70 Why is a valid prediction for the mean of the population not possible using these samples? A )Fiona had too many samples.
B )Fiona didn’t have enough samples.... C )The variation of Fiona’s samples is too large.
D )The variation of Fiona’s samples is too small.