Probability/Inferences Retest Quizziz

Greg has four different colored cards in a box: yellow, red, blue, and green. He randomly selects one card, records the color, and then replaces the card in the box. If Greg does this 300 times, how many yellow cards should he expect to select?

• 50

• 75

• 100

• 150

Find the mean absolute deviation for the following data:

• 5.50

• 4.50

• 3.75

• 2.75

The box plots show the numbers of lessons completed by individual students enrolled in an online program at two different schools. 

Which statement is best supported by the data in the box plots?

• A

• B

• C

• D

Annabel is comparing the distances that two electric cars can travel after the battery is fully charged. Based on the data, which car performs most consistently? A or B?

A sample representative of the entire population is an _____________.

• A

• B

• C

• D

Consider the following scenario and select the sampling method that is described.
​
​A teacher selects every third student in the class.

• Simple random

• Systematic

• Convenience

• Volumtary

Laura wants to determine if the 7�ℎ7th grade class wants to go on a field trip to an art museum, a concert, or a sporting event.
​Which sampling method would likely provide a representative sample of the population? 

• A

• B

• C

• D

​The probability of picking the card numbered 5 is:

• 25%

• 50%

• 24%

• 60%

A grocery store has 12 cartons of yogurt for sale, of which 3 are raspberry. 
​
​What is the probability that a randomly selected carton of yogurt will be raspberry?

• 1/2

• 1/4

• 1/3

• 4/5

An event with probability 3/4 is more likely to happen than an event with probability 4/5?​

True or False (put T or F)