Equally Likely Outcomes

In a 7th grade class of 28 students, there are 16 girls and 12 boys. If one student is randomly chosen to win a prize, what is the probability that a girl is chosen?

• $\frac{4}{7}$

• $\frac{15}{28}$

• $\frac{12}{28}$

• $\frac{12}{16}$

• $\frac{28}{16}$

An experiment consists of spinning the spinner once. Find the probability of landing on a 2.

• $\frac{2}{8}$

• $\frac{1}{8}$

• $\frac{3}{8}$

• $\frac{8}{8}$

• $\frac{5}{8}$

Find the probability of landing on a 1.

• $\frac{3}{8}$

• $\frac{1}{8}$

• $\frac{8}{3}$

• $\frac{2}{8}$

• $\frac{1}{1}$

An experiment consists of randomly picking a square section for the 16-space board shown. Find the probability of choosing a triangle.

•  $\frac{1}{2}$  

•  $\frac{8}{12}$  

•  $\frac{8}{10}$  

•  $\frac{4}{16}$  

•  $\frac{12}{16}$  

What is the probability of choosing a circle from the board pictured?

• 0

• $\frac{4}{16}$

• $\frac{1}{4}$

• $\frac{1}{16}$

• $\frac{16}{16}$

What is the probability that the spinner lands on a section labeled "Win"?

•  $\frac{2}{8}$  

•  $\frac{2}{7}$  

•  $\frac{1}{6}$  

•  $\frac{2}{2}$  

Daniela rolls a six-sided number cube labeled 1 to 6. Find P(rolling a 4). Write your final answer as a fraction using the / key.

Shannon rolls a normal, six-sided die. Find P(rolling an odd number). Write the probability as a decimal.

A game board has a spinner with 10 equal-sized sections, of which 4 are green, 3 are blue, 2 are yellow, and 1 is red. What is P(green or blue)? Write your answer as a percent.

Identify P(odd number)

• $\frac{3}{5}$

• $\frac{3}{6}$

• $\frac{2}{5}$

• $\frac{1}{3}$