A random sample of 60 students has 18 who support a later start time. About how many of 900 students would support it?

A survey asks 25 students in the after-school art club about the whole school's favorite sport. What is the main sampling problem?

In a random sample of 80 families, 52 prefer the online newsletter. About how many of 600 families would prefer it?

A random sample of 50 families finds 8 families with no pets. About how many of 1,200 families would have no pets?

A principal samples every 10th student on the complete school roster about lunch choices. Why is this likely representative?

Random sample A has 12 of 30 students favoring uniforms. Random sample B has 36 of 90 favoring uniforms. What percent does each estimate?

To estimate how many students walk to school, a survey asks only students arriving on foot. What bias does this create?

A random sample of 45 library books includes 27 fiction books. About how many of 1,500 library books are fiction?

What is the mean of the quiz scores 4, 6, 6, 8, and 11 points?

Find the median of the race times 12, 15, 18, 20, 25, and 30 minutes.

For the goals scored 3, 5, 7, 5, 9, 3, and 5, what is the mode?

Temperatures were -2°C, 4°C, 7°C, 1°C, and -5°C. What is the range?

For the data 1, 2, 4, 5, 8, 10, 12, and 13 cm, what is the interquartile range?

Team A scores 8, 9, 10, 11, 12. Team B scores 2, 6, 10, 14, 18. Which team has greater variability?

For 6, 8, 10, 12, and 14 books, what is the mean absolute deviation from the mean?

Values are 5, 6, 6, 7, and 31 days. Which center best represents the typical value?

Use the dot plot of practice hours. How many students practiced 2 hours?

Use the dot plot of quiz scores. How many students scored 8 or higher?

Use the dot plot of pets owned. What is the total number of families shown?

Use the dot plot of books read. What is the median number of books read?

Use the dot plot of commute minutes. What is the range of commute times?

Use the dot plot of plant heights. Which height has the most plants?

Use the dot plot of daily texts. How many data values are greater than 5 texts?

Use the dot plot of game points. What is the mean score?

A bag has 5 red, 3 blue, and 2 green marbles. What is the probability of not choosing red?

A fair number cube labeled 1 through 6 is rolled. What is the probability of rolling a number greater than 4?

A spinner has 4 equal sections: red, blue, blue, and yellow. What is the probability of landing on blue?

A coin is tossed 80 times and lands heads 44 times. What is the experimental probability of heads?

A bag contains 4 orange, 6 purple, and 10 black marbles. What is the probability of choosing orange?

What probability represents choosing a month with 32 days from a regular year calendar?

In weather records, it rained on 18 of 60 similar days. What experimental probability estimates rain on a similar day?

A bag has letter tiles A, A, B, C, D, D, and D. What is the probability of selecting D?

A fair coin is flipped and a fair number cube labeled 1 through 6 is rolled. What is P(heads and even)?

A spinner has 3 equal sections: red, blue, and green. A coin is flipped. What is P(green and tails)?

A student can choose 1 of 3 shirts and 1 of 2 pairs of shorts. How many outfits are possible?

Two fair number cubes labeled 1 through 6 are rolled. What is the probability that the sum is 7?

A bag has 2 red and 3 blue marbles. With replacement, what is P(red, then blue)?

Digits 0-9 are used in a simulation; 0 or 1 means success. In 50 trials, 14 successes occur. What is the experimental probability?

A menu has drinks tea and juice, and snacks nuts, fruit, yogurt, and granola. What is P(tea and granola)?

A bag has 3 yellow and 2 green marbles. Without replacement, what is P(green, then green)?