Unit 5 Summative - Investigating Probability Study Guide

What event has a probability of 0?

• Flipping a coin and landing on heads

• Rolling a six-sided die and getting an odd number

• Spinning a spinner numbered 1-10 and landing on 8

• Putting only green marbles in a bag and randomly selecting a red marble

Peter spins spinner with 7 sections numbered 1-7. Which outcome is certain?

• spinning a number greater than 5

• spinning an odd number

• spinning a number less than 8

• spinning a 5

If Sam were to conduct the experiment for 500 more trials, what would be the expected value for the number of times he might draw a blue marble?

• 14

• 175

• 200

• 125

Jamie tossed a coin 50 times. The coin landed on heads 27 times and landed on tails 23 times. What is the relative frequency of landing on tails?

• 0.23

• 4.6

• 46%

• 54%

A student flips a coin 10 times and gets tails 3 times. Which of the following is a true statement?

• The experimental probability and the theoretical probability are the same.

• The experimental probability is greater than the theoretical probability.

• The experimental probability is less than the theoretical probability.

• It is not possible to compare the experimental and theoretical probabilities.

Madelyn is watching cars drive by from the window of her classroom. She has seen 8

red cars, 5 white cars, 3 black cars, and 2 blue cars drive by. Which of the following experimental probabilities is correct based on her observations?

• P (red car) = 1/8

• P (white car) = 5/18

• P (black car) = 1/18

• P (blue car) = 1/10

Consider the dot plot of math test scores in Mr. Donovan's first period. Use the data to predict how many students out of 390 students will score a 80 on this assessment.

• 30

• 90

• 150

• 80

What can be inferred from the median of these data about the amount of television parents watch versus the amount of television their children watch?

• Parents watch approximately the same amount of television as their children.

• Parents watch approximately three times the hours of television as their children.

• Parents watch approximately three times less television as their children.

• Parents watch approximately four times less television as their children.

The dot plots display the number of miles Eli and Marcel ran last week. Compare the number of miles Eli and Marcel ran last week by analyzing the median values of the dot plots.

• Eli's median value is 2 less than Marcel's median value.

• Marcel's median value is 6 more than Eli's median value.

• Eli and Marcel had the same median value of 6 miles.

• Eli's median value was 6 miles and Marcel's median value was 4 miles.

What spinner has the probability of spinning a star closest to 0?

• 
• 
• 
•