Statistics Quiz: Median vs Average

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Questions and Answers

The median is larger than the average for which one of the following sets of integers?

[1, 2, 3, 4, 50] (correct)
[5, 6, 7, 8, 9]
[10, 20, 30, 40, 50]
[1, 2, 3, 4, 5]

What is the probability that a person selected at random picked a marble numbered 2 or greater?

0%
25%
50% (correct)
75%

Sarah cannot completely remember her four-digit ATM PIN number. She does remember the first two digits, and she knows that each of the last two digits is greater than 5. The ATM will allow her three tries before it blocks further access. If she randomly guesses the last two digits, what is the probability that she will get access to her account?

0.15
0.25
0.10
0.20 (correct)

What is the meaning of 'abandoned'?

<p>Deserted or left behind (B)</p> Signup and view all the answers

Flashcards

Median vs. Average

The median is the middle value in a sorted list of numbers. The average is the sum of the numbers divided by the count. In this case, the median is larger than the average of the integers 1, 2, 3, 4, and 50.

Probability of marble 2 or greater

The probability that a person selects a marble numbered 2 or greater is 50%. This means, out of all possible marbles, half of them meet the criteria.

ATM PIN probability

If the last two digits are greater than 5, then the possible choices are 6, 7, 8, 9 and 0; the probability of getting the correct digits in a random guess is 0.20.