Z-scores
What is the z-score?
M=70, S=8, X=66
z= -1.25
What is the probability of rolling a 3 on a standard die?
1/6 or 0.1667
What is the median of the following data set?
90, 4, 18, 20, 5, 16, 6
16
What was the first state?
Delaware
What date is your next test scheduled for?
March 9 (tentatively)
What is percentage of the population will be above 65?
µ=45, σ=7
0.21%
What is the probability of picking a face card in a standard deck of cards?
4/13 or 0.3077
What is the mean of the following data set?
18, 24, 1, 22, 30, 2
16.17
How many properties are on a Monopoly board?
28
How many absences can you have and still obtain a 100 for participation?
About 3
What is the percentile rank for a score of 50?
M=66, S=11
7.35%
What is the probability of rolling three sixes in a row on a standard die?
1/216 or 0.0046
What is the median of the following data set?
1, 2, 3, 4, 4, 4, 4, 4, 4, 4, 5, 6
2.93
Who is Barbie’s little sister?
Skipper
How fast was the first person ever convicted of "speeding?"
8 MPH
What score is represented by the 85th percentile?
M=30, S=4
X=34.16
If you roll a die 10 times and land on 1 every time, what is the probability that the next roll will be a 1?
1/6 or 0.1667
Find ΣX2 for the following data set:
2, 4, 6, 8, 20, 30, 40
3020
In what state is it legal to hunt unicorns?
Michigan
In Florida, only on Sundays, it is illegal for a single woman to do what?
Skydive
What is the proportion of scores between 28 and 33?
M=25, S=3
0.1549
Find the probability of throwing a total of 8 in a single throw with two dice.
5/36 or 0.1389
Solve for the population standard deviation of the following data set:
2, 18, 6, 12, 5
σ= 5.71
What is the real name of the Cookie Monster?
Sid
What is the probability that a score falls between 60 and 74?
M=65, S=8
0.6065