Math and Probability Quiz

The video tutorial covers four math problems. The first problem involves converting miles to kilometers using ratios. The second problem calculates the value of a mutual fund investment over three years with varying percentage changes. The third problem determines the expected number of defective chips in a shipment based on past data. The final problem calculates the probability of selecting numbers from two sets that sum to a specific value.

If 1 kilometer is approximately 0.6 miles, how many kilometers are there in 2 miles?

• 5 kilometers

• 4 kilometers

• 2 kilometers

• 3 1/3 kilometers

What is the improper fraction representation of 3 1/3 kilometers?

• 9/3

• 10/3

• 12/3

• 11/3

After a 10% increase in the first year, what is the value of Lucy's mutual fund account?

• $12,000

• $13,000

• $11,000

• $10,000

What is the final value of Lucy's account after three years of changes?

• $11,550

• $10,350

• $10,000

• $12,000

How many defective chips are expected in a shipment of 60,000 if the ratio is 1 defective chip per 3,000?

• 10

• 15

• 25

• 20

What is the total number of chips in shipments S1 through S4 combined?

• 41,000

• 71,000

• 51,000

• 61,000

What is the probability that the sum of two integers, one from set A and one from set B, equals 9?

• 0.4

• 0.3

• 0.1

• 0.2

If you pick 3 from set A, which number must you pick from set B to sum to 9?

• 7

• 5

• 4

• 6

How many numbers are there in set B?

• 5

• 4

• 6

• 3

If you pick 5 from set A, which number must you pick from set B to sum to 9?

• 4

• 5

• 3

• 6