Math AIMS BlitzPeriods 1 - 3

StatisticsTuesday, March 30

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Period 1Define.

1. mean

2. median

3. mode

4. range

5. maximum

6. minimum

7. dependent events

8. independent events

9. combinations

Period 1 ANSWERSDefine each of the following terms.1. mean average – add all items and divide by the number of items.

2. median middle of a group when put in sequential order

3. mode most frequently occurring

4. range maximum minus the minimum

5. maximum highest value

6. minimum lowest value

7. dependent events events that affect one another

8. independent events events that do not affect one another

9. combinations number of possible outcomes-order doesn’t matter

Period 2Find the mean, median, mode, range, maximum, and minimum of each set.

1. {1, 2, 2, 3, 4, 5, 11}

2. {7, 6, 1, 7, 4},

3. {7, 10, 3, 2, 5, 12}

Period 2 ANSWERS

Find the mean, median, mode, range, maximum, and minimum of each set.

1. {1, 2, 2, 3, 4, 5, 11}mean:4 median:3 mode:2 range:10 maximum:11 minimum:1

2. {7, 6, 1, 7, 4}mean:5 median:6 mode:7 range:6 maximum:7 minimum:1

3. {7, 10, 3, 2, 5, 12}mean:6.5 median:6 mode:none range:10 maximum:12 minimum:2

Period 31. Kristy & Clint each performed an

experiment in which they spun a fair spinner 12 times. They recorded their results.

Which outcome has a probability of 0?

a. After 3 more spins, Clint will have a total of 8 results of R.b. After 6 more spins, Kristy will have a total of 12 results of Y.c. After 3 more spins, Kristy’s results match the expected results based on theoretical probability.d. After 6 more spins, Clint’s results match the expected results based on

theoretical probability.

2. What is the probability of rolling a number less than 6 when rolling a six-sided number cube numbered 1 through 6?a. ½ b. 5/6

c. 1/6 d. 1

Kristy

Clint

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Period 3 ANSWERS1. Kristy & Clint each performed an

experiment in which they spun a fair spinner 12 times. They recorded their results.

Which outcome has a probability of 0?

a. After 3 more spins, Clint will have a total of 8 results of R.b. After 6 more spins, Kristy will have a total of 12 results of Y.c. After 3 more spins, Kristy’s results match the expected results based on theoretical probability.d. After 6 more spins, Clint’s results match the expected results based on theoretical probability.

2. What is the probability of rolling a number less than 6 when rolling a six-sided number cube numbered 1 through 6?a. ½

b. 5/6 c. 1/6 d. 1

Kristy

Clint