Session 4 Level 6

Mean/Mean Deviation

100

Find the mean: 12,10,14,13,12,11,12

mean: 84

200

Find the mean: 21, 25, 23, 18, 26, 22

22.5

300

Find the mean:  9 ,-7, 12, 5, -10, 11, 6, 2, 8 

4

400

Find the mean deviation: 45, 43, 34, 47, 52, 45, 38, 40

4.25

500

Find the mean deviation: -11,5,2,-18,-11,-1,5,-6,-1

Mean deviation: 6.67

Median, Mode, Range

100

Find the mode: 12,10,14,13,12,11,12

12

200

Find the median: 12,10,14,13,12,11,12

12

300

Find the median: 21, 25, 23, 18, 26, 22

22.5

400

Find the range: -12,-10,14,13,12,-11,12

26

500

Find the median, mode and range: 9 ,-7, 12, 5, -10, 11, 6, 2, 8

Median: 6

Mode: None

Range: 22

Probability of Independent/Dependent Events

100

A package of construction paper contains 6 purple sheets and 12 black sheets.

What is the probability that a randomly selected sheet will be purple?

P(purple) = 1/3

200

You roll a 6-sided die. What is the probability of rolling a prime number? 

P(prime) = 1/2

300

You pick a card at random. Without putting the first card back, you pick a second card at random.

4 5 6 7

What is the probability of picking a 7 and then picking an odd number and then picking an even number? 

1/12

400

A pair of dice is rolled. Find the probability of not showing the sum of 6. 

31/36

500

A pair of dice is rolled twice. Find the probability of getting a sum of 5 on the first roll, and an even sum on the second roll. 

5/72

Probability Word Problems

100

Carl has lots of colored paper. There are 100 papers in a bundle, 82 of which contain pink paper. What is the probability of selecting a pink paper at random?

82/100

200

A bag contains 60 mixed mangoes and oranges. without looking, you choose a fruit out of the bag. You record the fruit and then place the fruit back in the bag. You recorded 25 mangoes and 20 oranges over 45 pulls. Using these results, predict the number of oranges in the bag. 

26.66, or 27 oranges. 

300

In a town, 25% of all inhabitants have blonde hair and 30% have green eyes. 10% of blonde hair and green eyes. Choosing a person at random, what is the probability that this person has blonde hair but not green eyes?

15%

400

In a town, 25% of all inhabitants have blonde hair and 30% have green eyes. 10% have both blonde hair and green eyes. Choosing a person at random, what is the probability that a green-eyed person does not have blonde hair?

66.67%

500

A bag of chocolate candies contains 200 sugar-coated candies. 70% are made of milk chocolate; the others are made of dark chocolate. 60% are coated with brown sugar, while the rest has a white coating. 45% are made of milk chocolate and have a brown sugar coating. 

Choosing a candy at random, what is the probability of getting one with white coating and made of milk chocolate? 

25%