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PLEASE HELP. 20PTS...Fiona recorded the mean math exam grade for six random samples of students from the entire seventh-grade class. 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.

Answer :

Answer:

C)

Step-by-step explanation:

every other number has no quarrel with the other, just looks like random numbers.

Lanuel

It's impossible to have a valid prediction for the mean of the population by using the given samples because the variation of Fiona’s samples is too large.

What is a mean?

A mean is also known as an arithmetic average and it can be defined as a ratio of the sum of the total number in a data set to the frequency of the data set.

How to calculate the mean?

Mathematically, the mean for the given data set should be calculated by using the following formula:

Mean = [F(x)]/n

However, it's impossible to have a valid prediction for the mean of the population by using the given samples because the variation in her samples is too large.

Read more on mean here: https://brainly.com/question/9550536

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