Open Up - Grade 7 - Mathematics - Unit 8 - Lesson 7

Priya’s cat is pregnant with a litter of 5 kittens. Each kitten has a 30% chance of being chocolate brown. Priya wants to know the probability that at least two of the kittens will be chocolate brown. To simulate this, Priya put 3 white cubes and 7 green cubes in a bag. For each trial, Priya pulled out and returned a cube 5 times. Priya conducted 12 trials. Here is a table with the results: How many successful trials were there?

Tags

7.SP.8.c

Priya’s cat is pregnant with a litter of 5 kittens. Each kitten has a 30% chance of being chocolate brown. Priya wants to know the probability that at least two of the kittens will be chocolate brown. To simulate this, Priya put 3 white cubes and 7 green cubes in a bag. For each trial, Priya pulled out and returned a cube 5 times. Priya conducted 12 trials. Here is a table with the results: Write and answer another question Priya could answer using this simulation.

Tags

7.SP.8.c

Priya’s cat is pregnant with a litter of 5 kittens. Each kitten has a 30% chance of being chocolate brown. Priya wants to know the probability that at least two of the kittens will be chocolate brown. To simulate this, Priya put 3 white cubes and 7 green cubes in a bag. For each trial, Priya pulled out and returned a cube 5 times. Priya conducted 12 trials. Here is a table with the results: How could Priya increase the accuracy of the simulation?

Tags

7.SP.8.c

A team has a 75% chance to win each of the 3 games they will play this week. Clare simulates the week of games by putting 4 pieces of paper in a bag, 3 labeled “win” and 1 labeled “lose.” She draws a paper, writes down the result, then replaces the paper and repeats the process two more times. Clare gets the result: win, win, lose. What can Clare do to estimate the probability the team will win at least 2 games?

Tags

7.SP.8.c

List the sample space for selecting a letter a random from the word “PINEAPPLE.”

Tags

7.SP.8.c

A letter is randomly selected from the word “PINEAPPLE.” Which is more likely, selecting “E” or selecting “P?”

• E
• P

Tags

7.SP.8.c

On a graph of side length of a square vs. its perimeter, a few points are plotted. Add at least two more ordered pairs to the graph.(Show Your Work)Is there a proportional relationship between the perimeter and side length? (Multiple Choice)

• Yes, there is a proportional relationship between side length and perimeter.
• No, there is a no proportional relationship between side length and perimeter.

Tags

7.SP.8.c