Quiz about Statistics And Probability

Question 1

Mr. Larkin grouped the students in his class into $$4$$ groups of equal size, labeled Red, Blue, Green, and Yellow. Each day, Mr. Larkin selects one group at random to read aloud during class. The groups selected each day for $$8$$ days are shown.

![](http://admin.getprephub.com/media/editor/m5_20230328211510085332.png)
Which group's observed frequency of being selected is closest to its expected frequency?

Accepted Answer

Covalent bond

Answer

Red Group

Answer

Blue Group

Answer

Green Group

Answer

Yellow Group

Question 2

A fair coin is flipped $$3$$ times.

What is the probability that the coin lands heads up once and lands tails up twice if order does not matter?

Accepted Answer

Covalent bond

Answer

$$\frac{3}{8}$$

Answer

$$\frac{1}{4}$$

Answer

$$\frac{1}{8}$$

Answer

$$\frac{5}{8}$$

Question 3

Complete the sentence about the probability of an event.

An event with a probability near $$0.5$$ indicates that the event is

Accepted Answer

Covalent bond

Answer

neither unlikely nor likely

Answer

likely

Answer

unlikely

Answer

none of the above

Question 4

A high school athletic director wants to know what the best time would be to schedule practices for all of the sports teams. She surveys the girls' basketball team to get the players' input.

Which statement describes the athletic director's sample?

Accepted Answer

Covalent bond

Answer

It is biased.

Answer

It is unbiased.

Answer

It is representative.

Answer

It is the entire population.

Question 5

Evelyn, Brooke, and Peyton are sitting in a row.

How many different seating arrangements can there be?

Accepted Answer

Covalent bond

Answer

6

Answer

9

Answer

27

Answer

45

Statistics And Probability Class 7 Maths Problems and Solutions

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