7.8 Test Prep

Benjamin has a basket of 5 red balls, 3 yellow balls, and 2 green balls. What is the probability that the ball he randomly chooses will be red?

• $\frac{1}{10}$

• $\frac{1}{5}$

• $\frac{1}{2}$

• $\frac{5}{8}$

During a game, Louise tossed a coin 10 times and got 7 "tails". What is the theoretical probability the coin will land on heads on Louise's next toss?

• $\frac{1}{3}$

• $\frac{1}{2}$

• $\frac{7}{10}$

• $\frac{3}{10}$

A breeder has 5 chocolate labs, 6 black labs, and 4 yellow labs. What is the probability of picking a chocolate lab?

• $\frac{1}{5}$

• $\frac{1}{3}$

• $\frac{2}{3}$

• $\frac{1}{4}$

Based on the spinner, what is the theoretical probability of spinning a yellow?

• $\frac{1}{4}$

• $\frac{1}{2}$

• $\frac{1}{3}$

• $\frac{2}{4}$

Reagan spins the wheel 16 times. She lands on red 3 times, green 4 times, blue 7 times, and yellow 2 times. What is the experimental probability of spinning a yellow?

• $\frac{1}{8}$

• $\frac{1}{4}$

• $\frac{1}{16}$

• $\frac{3}{16}$

You were given a standard deck of 52 cards which includes 4 queens. If you drew one card, what is the probability of selecting a queen? Choose the fraction in SIMPLEST form.

• $\frac{13}{52}$

• $\frac{4}{52}$

• $\frac{1}{13}$

• $\frac{1}{4}$

A student has a jar containing red, blue, and green marbles. She randomly chooses a marble, records the color, replaces the marble. She conducts this experiment a total of 200 times. If she records red 75 times, green 100 times, and blue 25 times, what is the experimental probability she will select a green marble?

•  $\frac{1}{2}$  

•  $\frac{3}{8}$  

•  $\frac{1}{8}$  

A student has a jar containing red, blue, and green marbles. She randomly chooses a marble, records the color, replaces the marble. She conducts this experiment a total of 200 times. If she records red 75 times, green 100 times, and blue 25 times, what is the experimental probability she will select a red marble?

• $\frac{3}{8}$

• $\frac{1}{2}$

• $\frac{1}{8}$

A student has a jar containing red, blue, and green marbles. She randomly chooses a marble, records the color, replaces the marble. She conducts this experiment a total of 200 times. If she records red 75 times, green 100 times, and blue 25 times, what is the experimental probability she will select a BLUE marble?

• $\frac{3}{8}$

• $\frac{1}{2}$

• $\frac{1}{8}$

A fair number cube has six sides, numbering 1 through 6. Which of the events has the highest probability?

• a number less than 3

• a number greater than 2

• an even number

• an odd number