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Front

What is the expected number of students who like fried chicken best in a class of 250 students if 10% prefer it?

Back

25 students (10% of 250 is 25).

Front

What is the probability of rolling an odd number on a number cube numbered 1 through 6?

Back

The probability is 3/6 or 1/2, since there are 3 odd numbers (1, 3, 5).

Front

What is the probability of rolling an even number on a number cube numbered 1 through 6?

Back

The probability is 3/6 or 1/2, since there are 3 even numbers (2, 4, 6).

Front

If a drawer contains 1 black sock for every 4 white socks, what is the probability of pulling out a black sock?

Back

The probability is 1/5, since there is 1 black sock and 4 white socks (1+4=5 total socks).

Front

If a clothing store has 50 dresses, 10 blouses, 40 skirts, and 45 sweaters, what is the probability of selecting a dress?

Back

The probability is 50/(50+10+40+45) = 50/145.

Front

What is the total number of items in the clothing store if there are 50 dresses, 10 blouses, 40 skirts, and 45 sweaters?

Back

145 items (50 + 10 + 40 + 45 = 145).

Front

In a probability scenario, what does it mean if an event is 'more likely'?

Back

It means the probability of that event is greater than 0.5.

Front

What is the definition of probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

If there are 30 boxes of white printer paper and 10 boxes of colored printer paper, which is more likely to be selected?

Back

White printer paper is more likely to be selected since there are more boxes (30 vs 10).

Front

What is the formula for calculating the probability of an event?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes).