Likelihood and Probability or Not?
What is the likelihood of an event that has a probability of 5/7 ?
Likely
What is the theoretical probability of rolling a 4 on a number cube? Answer as a fraction (in simplest form), a decimal (rounded to the nearest hundredth) and a percent (rounded to the nearest whole).
1/6, 0.17, 17%
What is the probability of tossing a coin and landing on heads and rolling a dice and landing on 3? Answer as a fraction in simplest form.
1/12
You want to estimate the number of books students in your school read over the summer. You survey every fourth student who enters the school. Is the sample biased or unbiased? Explain why.
Unbiased . . .
Explain how to find the mean.
Add up all of the numbers and divide it by the number of values.
What is the likelihood of an event that has a probability of 0?
Impossible
What is the theoretical probability of rolling an even on a number cube? Answer as a fraction (in simplest form), a decimal (rounded to the nearest hundredth) and a percent (rounded to the nearest whole).
1/2, 0.5, 50%
What is the probability rolling a dice two times and landing on even both times? Answer as a fraction in simplest form.
1/4
You want to estimate the number of students in your school who think the gymnasium should be remodeled. You survey 12 students on the basketball team. Is this sample biased or unbiased? Explain why.
Biased . . .
Explain how to find the mean absolute deviation.
Find each values distance from the mean and then find the mean of all of the distances.
Can -0.34 represent the probability of an event happening? Explain.
No, it is negative.
Jackie's Mega Muffins recently sold 14 muffins, of which 2 were blackberry muffins. What is the experimental probability that the next muffin sold will be a blackberry muffin? Answer as a fraction (in simplest form), a decimal (rounded to the nearest hundredth) and a percent (rounded to the nearest whole).
1/7, 0.14, 14%
There are 10 yellow, 6 green, 9 orange, and 5 red cards in a stack of cards turned facedown. Once a card is selected, it is not replaced. Find P(yellow then yellow). Answer as a fraction in simplest form.
3/29
You ask 125 randomly chosen students to name their favorite food and 58 said pizza. There are 1500 students in the school. Predict the number of students in the school whose favorite food is pizza.
696
What is the range of 13, 15, 20?
7
Can 98/100 represent the probability of an event happening? Explain.
Yes, it is between 0 and 1.
At the Clay County Fair, 6 of the last 15 people to spin the prize wheel won a prize. What is the experimental probability that the next person to spin the wheel will win a prize? Answer as a fraction (in simplest form), a decimal (rounded to the nearest hundredth) and a percent (rounded to the nearest whole).
2/5, 0.4, 40%
There are 10 yellow, 6 green, 9 orange, and 5 red cards in a stack of cards turned facedown. Once a card is selected, it is not replaced. Find P(red then orange). Answer as a fraction in simplest form.
3/58
You ask 125 randomly chosen students to name their favorite food and 36 said hamburger. There are 1500 students in the school. Predict the number of students in the school whose favorite food is hamburger.
432
What is the mean of 13, 15, 20?
16
What is the likelihood of pulling a red marble out of a bag that only has red marbles in it?
Certain
Ashley rolled a dice 100 times. She landed on an odd number 53 times. Compare the experimental and theoretical probabilities.
The experimental probability was greater than the theoretical by 3%.
There are 10 yellow, 6 green, 9 orange, and 5 red cards in a stack of cards turned facedown. Once a card is selected, it is not replaced. Find P(green then green). Answer as a fraction in simplest form.
1/29
You ask 125 randomly chosen students to name their favorite food and 14 said pasta. There are 1500 students in the school. Predict the number of students in the school whose favorite food is pasta.
168
What is the mean absolute deviation of 13, 15, 20?
2 and 2/3