Select a counter-example that makes the conclusion false.

You select three marbles from a bag and each of them is black.

Conclusion: All the marbles in the bag are black.

Counterexample:

Christina went to the salon and had 5/8 of an inch of hair cut off. The next day she went back and asked for another 5/8 of an inch to be cut off.

You roll a fair 6-sided die. what is the probability of rolling a 2.

A contractor is considering whether he should take on a project that promises a profit of $8800 with a probability of 0.83 or a loss (due to bad weather, strikes, etc.) of $2900 with a probability of 0.17.

I am the tape recorder in the French language lab. I make $11.30 per hour, and I worked 29 1/2 hours this week. I received a bonus of $3.50 when I taught the students how to say "I love you" in French.

Write this trinomial in factored from 6a^2-17a+7

If each foot of water in a lake screens out 60% of the light above, what percent of the light passes through 5 feet of water?

The sum of three consecutive numbers is 117. What is the first of the three numbers?

Mario received $0.40 in change from $20 when he bought trail mix. How many pounds of trail mix did Mario buy?

A stepper motor requires 200 steps per revolution. how many degrees does the motor rotate per step?

At a tailor shop, it costs $6.79 to shorten a pair of pants and $9.25 to take in a dress. Lisa brought in 3 pairs of pants to be shortened and 1 dress to be taken in. How much will she pay for the tailoring? A $16.04 B $20.37 C $27.16 D $29.62