Mixed Practice Q3

10 % of what number is 8?

• 50
• 74
• 80
• 71

What percent of 50 is 20?

• 40%
• 25%
• 2.5%
• 4%

The movie theater has 250 seats. 225 seats were sold for the current showing. What percent of seats are empty?

• 10%
• 20%
• 80%
• 90%

Bill is in a class of 15 boys and 35 girls. 40% of the students in the class take the bus to school. How many students do not take the bus to school?

• 15
• 20
• 30
• 35

There were 380 students at the winter dance last year. If 210 of the students were girls, what percent represents how many girls were at the dance?

• 181%
• 55%
• 45%
• 4.5%

The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

There are 23 marbles, each a different color in a bag. One of them is pink. What is the probability of reaching in to the bag, without looking, and selecting a pink marble?

• 1/22
• 1/23
• 23/1

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

Shannon has a bag of jelly beans. She removed on jelly bean, recording the color, and then replaced it. She repeated the process several times and record her results in the table. What is the experimental probability of her selecting a red jelly bean?

• 11/33
• 1/3
• 1/4
• 18/26

How do you find the range?

• order least to greatest, then slash from each side until you reach the middle
• add the numbers in your data set, then divide by the amount you added
• look for the number that repeats the most
• highest number minus the lowest number