Standard Deviation and Variance
Mean & Range
Mode & Median
Normal Distribution
Probability
FCP, C, & P
100
The variance of a data set is 9, what is the standard deviation?
Standard deviation = 3
100
Find the range of: 109, 123, 145, 894, 147
785
100
Find the mode 1, 2, 3, 4, 5, 6, 6, 6, 6, 7, 8
6
100
Approximately what percentage of results lie within one standard deviation from the mean?
68%
100
What is the probability of 3:5 written as a percent?
60%
100
Permutation or Combination: Coach must choose 4 out of the 18 team members to ride in her car on the way to the tournament.
Combination
200
The standard deviation of a data set is 4, what is the variation?
Variation = 16
200
Find the mean: 45, 67, 89, 23, 12
47.2
200
Find the median: 1, 3, 5, 5, 7, 9, 10
5
200
Approximately what percentage of results lie within two standard deviations from the mean?
95%
200
Is this event dependent or independent?
You choose a 200 level question from the Jeopardy board and answer it. Then you choose another 200 level question from the Jeopardy board.
dependent
200
Solve 11!
39,916,800
300
Find the mean absolute deviation for this set:
4, 5, 6, 7, 9, 11
2
300
Find the mean: 12, 13, 14, 15, 16, 17, 147
33.4
300
Find the mode : 67, 891, 819, 345, 819
819
300
Two hundred students responded to a survey about their average daily screen time. If the mean result was 6 hours and the standard deviation was 2 hours, what percentage of students had average daily screen times of less than 4 hours?
16%
300
A assorted box of chips contains 5 Cheetos, 5 Doritos, 4 Ruffles, and 2 Fritos. Jack randomly chooses a bag of chips, eats it, then chooses another. What is the probability that he chooses Cheetos and then a Ruffles?
1/12 or 0.083 or 8.3%
300
Virnna is ordering a new bag as a gift for her mom. The bags come in small, medium, or large. They also come in backpack style or shoulder strap style. Finally, there are 14 different color and pattern options. What is the total number of bags offered?
84 bags
400
Set A: 3, 4, 5, 6, 2, 3, 4 Set B: 3, 6, 8, 9, 1, 9, 1 Which data set would have the smaller standard deviation?
Set A because the numbers are closer together
400
Alvin has 149 pairs of socks, Theodore has 890 pairs of socks, Simon has 123 of socks, and Jane has 147 pairs of socks. Find the range.
767
400
Find the mode: 45, 6889, 6889, 6889, 12
6889
400
Two hundred students responded to a survey about their average daily screen time. If the mean result was 6 hours and the standard deviation was 2 hours, how many students have average daily screen times above 10 hours?
5
400
What is the probability of this fair spinner landing on a multiple of 4?
4/9 or 0.4444... or ~44.4%
400
There are 24 students in the class who are playing a Blooket game. How many different possible ways can students finish on the podium (1st place, 2nd place, 3rd place)?
12,144
500
True or False: It is possible for the variance to equal the standard deviation.
True. If the variance is 1, then the standard deviation is also 1.
500
Find the mean: 1234, 1570, 784, 36, 9756
2676
500
Find the median: 8769, 6543, 789, 12, 957
957
500
The years of employment for workers at Mr. William's factory is normally distributed with a mean of 12 years. If 84% of the workers have worked there more than 8.5 years, what is the standard deviation?
3.5 years
500
What is the probability that one would randomly select a bird owner from the pet owners, given that the pet owner is male?
4/129 or 0.031 or 3.1%
500
There are 27 different types of cereal on the shelf at the grocery store. If Ben's mom asked him to buy 2 boxes of cereal, how many different groups of two are possible?
351