7.6H - STAAR REVIEW-Simple Experiments

The table shows the number of bottles of different kinds of juice sold at a cafeteria on Monday.

If the cafeteria has 80 customers on Tuesday, which prediction for Tuesday is NOT supported by the data in the table?

• The number of bottles of cranberry juice sold will be 6 more than the number of bottles of pineapple juice sold.

• The number of bottles of apple juice sold will be 6 times the number of bottles of cranberry juice sold.

• There will be a total of 50 bottles of orange and cranberry juice sold.

• The difference between the number of bottles of apple juice sold and the number of bottles of pineapple juice sold will be 14.

Justin has 50 pictures in an album. Of these pictures, 30 show his friends, 12 show his family, and 8 show only Justin. Justin is in  $\frac{1}{2}$  of the pictures that show his friends and  $\frac{1}{2}$  of the pictures that show his family.

Based on this information, which statement is true?

• The probability of randomly selecting a picture that shows Justin with his friends is greater than the probability of randomly selecting a picture that shows Justin with his family.

• The probability of randomly selecting a picture that shows Justin is 8%.

• The probability of randomly selecting a picture that shows Justin with his family is 5 times the probability of randomly selecting a picture that shows only his friends.

• The probability of randomly selecting a picture that does not show Justin is 21%.

The manager of a movie theater randomly surveyed 50 people who entered the movie theater on Friday. The manager asked about the type of movie each person preferred. The results of the survey are shown in the table.

Based on the results in the table, which statement about a person who will go to this theater next Friday is true?

• The person is three times as likely to prefer comedy as horror.

• The person is twice as likely to prefer drama as horror.

• The person is less likely to prefer horror or drama than action.

• The person is more likely to prefer horror or comedy than action or drama.

The 200 students in a school band will attend an 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 students who want a pasta meal than want a chicken meal.

Mari bought 6 packets of tomato seeds. Each packet contained 24 seeds. She planted 1 packet of the seeds, and 15 seeds sprouted.

Which statement about the seeds in the remaining packets is best supported by this information?

• No more than 50 seeds will sprout.

• Between 50 and 100 seeds will sprout.

• At least 100 but no more than 120 seeds will sprout.

• All 120 seeds will sprout.

Leticia has two bouquets of flowers. Each bouquet contains 13 daisies.

- Bouquet S contains 30 flowers.

- Bouquet T contains 13 flowers.

Which statement is true?

• The probability of randomly selecting a daisy from Bouquet S is less than the probability of randomly selecting a daisy from Bouquet T.

• The probability of randomly selecting a daisy from Bouquet S is 1.

• The probability of randomly selecting a daisy from Bouquet S is equal to the probability of randomly selecting a daisy from Bouquet T.

• The probability of randomly selecting a daisy from Bouquet S is $\frac{1}{3}$ .

A store manager receives a delivery of 2 boxes of lightbulbs. Each box contains 25 lightbulbs. The store manager tests all the lightbulbs and finds that 2 of them are defective. Based on these results, what can the store manager predict about the next delivery of lightbulbs?

• A delivery of 3 boxes will contain 3 more defective lightbulbs than a delivery of 2 boxes.

• A delivery of 4 boxes will contain 2 more defective lightbulbs than a delivery of 2 boxes.

• A delivery of 5 boxes will contain 10 more defective lightbulbs than a delivery of 2 boxes.

• A delivery of 6 boxes will contain 3 more defective lightbulbs than a delivery of 2 boxes.

Felix has a bucket of golf balls. The table shows the number of golf balls of each color in the bucket.

Felix selects a golf ball at random. Based on the information in the table, which statement is true?

• The golf ball is more likely to be green than all other colors combined.

• The golf ball is equally likely to be pink, white, orange, or green.

• The golf ball is 2 times as likely to be orange as it is to be pink.

• The golf ball is 7 times as likely to be green as it is to be white.

Deborah surveyed customers in a restaurant to find out their favorite meal. The results of the survey are shown in the table.

One person in the restaurant will be picked at random. Based on the given information, which statement is true?

• This person's favorite meal is twice as likely to be hamburger and french fries as it is to be spaghetti.

• This person's favorite meal is four times as likely to be chili as it is to be vegetarian delight.

• This person's favorite meal is more likely to be chili than hamburger and french fries.

• This person's favorite meal is equally likely to be vegetarian delight or spaghetti.

Bruce took a survey of high school students to see how many had part-time jobs last summer. The results of the survey are shown in the table.

Based on the results, which of the following is true?

• There are more sophomores that had summer jobs than freshmen who had summer jobs.

• There are more sophomores and juniors that had summer jobs than freshmen and seniors.

• There are more total freshmen than sophomores and juniors combined.

• Sophomores were the lowest number grade level to have summer jobs.