L43 Making Predictions

^{In Ms. Vela's 3rd period class, 12 out of 25 students participate in athletics. Based on this information, if there are 400 students in the 7th grade, how many students could be expected to participate in athletics? (7.6C)}

• 192

• 96

• 200

• 84

• 7

• 42

• 60

• 140

Olivia is conducting an experiment using a bag of marbles.  She reaches into the bag, draws a marble, records the result, and returns the marble to its bag.  She repeats this experiment 20 times.  Her results are shown in the table.

 

Based on these results, predict the number of times Olivia will draw a blue marble from the bag if she repeats the experiment 200 times. (TEKS 7.6C)

• 20

• 40

• 100

• 200

Alejandro rolls a die and flips a coin 20 times. The results are shown in the table. 

If Alejandro rolls a die and flips a coin an additional 150 times, how many times should he expect to roll an odd number and have the coin land with the tail side facing up? (7.6C-SS)

• 4

• 90

• 25

• 30

• 50

• 35

• 45

• 14

Leslie has two cups containing different colored paper clips. 

What is the probability that Leslie will randomly select a blue paper clip from the first cup and then randomly select an orange paper clip from the second cup? (7.6D-SS)

A bag of fruit contains 3 apples, 2 oranges, 1 banana, and 4 pears.  Luis will randomly select two pieces of fruit one at a time from the bag and not put the fruit back. What is the probability that the first piece of fruit Luis selects will be a banana and the second piece of fruit will be an orange?  (7.6D-SS)

Caiden flipped three coins during a probability experiment. The outcomes of the first 30 trials are shown in the table.

Based on the information in the table, in how many of the next 120 trials will the outcome be exactly two of the coins showing heads? (7.6C-SS)

• 60

• 52

• 40

• 92

The 200 students in a school band will attend the awards dinner. A random survey of 25 of these students was conducted to determine how many of each meal should be prepared for the dinner. The results of the survey are shown.

 

·         12 students want a beef meal.

·          8 students want a chicken meal.

·          5 students want a pasta meal.

Based on the survey results, which of these is the best prediction of the meals wanted by the 200 students?

• There are 16 students who want a beef meal

• There are 52 students who want either a chicken meal or a pasta meal.

• There are 32 more students who want a beef meal than want a chicken meal.

• There are 24 more students who want a pasta meal than want a chicken meal.

The angle measures of a triangle are shown in the diagram.  What is the value of  x?  (TEKS 7.11C)

 

• 16

• 35

• 26

• 117