Question

It`s a quizz containing 2 questions 1. Given a sample of 50 IQ scores ranging from...

It`s a quizz containing 2 questions

1. Given a sample of 50 IQ scores ranging from 80 to 145, if the 80 were accidentally typed in error as an 8, what would be the impact on the mean?

It would increase

It would decrease

It would remain the same

2.

What is the level of data for the jersey numbers of football team players?

Nominal

Ordinal

Interval/Ratio

0 0
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Answer #1

Dear student, only one question is allowed at a time. I am answering the first question

1)

Mean = Sum of observations / Number of observations

Now, as the actual data of the observations contained 80 which was typed as 8, the sum of observations would have reduced in place of actual sum of observations which would have been 72 (80 – 8) higher than the current sum of observations. Due to this, the mean would have reduced or decreased

So, as per above discussion, option B is the correct option

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