Probability

What is the definition of probability?

• the likelihood something could happen

• the likelihood something did occur

• Probability?!

• 

You have 5 blue marbles, 7 red marbles, 6 glitter marbles.

What is P(blue)? (Reduce the fraction if necessary)

• 5/18

• 7/8

• 6/18

• You don't have any blues

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?

• 193
• 127
• 60
• 66

Tags

CCSS.7.NS.A.1

CCSS.7.SP.B.4

Dependent events have a minimum of how many events?

• 1

• 3

• 2

• 5

You pick one nail color and replace it.

Nail colors:

2 pink

3 green

4 red

1 glitter

P( pink, then red). Simplify if necessary.

• 1/5

• 8/100

• 2/25

• 4/10

What is the variance for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 47.47

• 102.01

• 52.77

• 81

Find the mean of these set of numbers. Round to the nearest tenth if necessary.

5, 4, 2, 6, 8, 15

• 23

• 94

• 6.6

• 6.7

What is the probability of the arrow stopping on “X” on the first spin and “F” on the second spin?

• 5/6
• 1/36
• 1/3
• 1/6

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Based on the picture, find the probability if I roll a 5 on the number cube, and spin a blue letter.

• ⅙ x ¼ = 1/24
• 5/6  x  1/4 = 5/24

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Find the mean of these numbers:
5,11,2,12,4,2

• 4.1
• 6
• 4.5
• 4

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5