Answers Concepts in Probability and Statistics AConditional Probability

Probability with Combinations and Permutations Answers

0 verified answers

Information about the recycling drive at school is shown in the table. Let A be the event that the item pulled out of the recycling bin is a plastic bottle, and let B be the event that a tenth grader recycled that item.

A and B are independent events because P(A∣B) = P(A).

A and B are independent events because P(A∣B) = P(B).

A and B are not independent events because P(A∣B) ≠ P(A).

A and B are not independent events because P(A∣B) ≠ P(B).

Free Preview

The two-way table shows the ages of the players on different soccer teams.Which statement is true?

The probability that a randomly selected player on Team A is 8 years old is .

The probability that a randomly selected 8-year-old player is on Team C is .

The probability that a randomly selected player on Team C is 10 years old is .

The probability that a randomly selected 10-year-old player is on Team B is .

Information about the students at Jackson High School is shown in the table.

Out of the 352 eleventh graders at the school, 173 of them are girls.

Out of the 511 boys at the school, 150 of them are tenth graders.

Out of the 523 tenth graders at the school, 173 of them are boys.

Out of the 376 girls at the school, 182 of them are eleventh graders.

A survey was taken of children between the ages of 7 and 12. Let A be the event that the person rides the bus to school, and let B be the event that the person has 3 or more siblings.Which statement is true about whether A and B are independent events?

A and B are independent events because P(A∣B) = P(A) = 0.12.

A and B are independent events because P(A∣B) = P(A) = 0.25.

A and B are not independent events because P(A∣B) = 0.12 and P(A) = 0.25.

A and B are not independent events because P(A∣B) = 0.375 and P(A) = 0.25.

Which statements are true? Select three options.

Milk was requested for 16 of the large-sized meal orders.

Soda was requested for 280 of the kids’ meal orders.

A juice box was requested for 82 of the regular-sized meal orders.

Sixty-three of the orders of soda came with a regular-sized meal.

A total of 124 large-sized meals were ordered.

Find P(Y|B) from the information in the table.

0.2

0.3

0.4

0.5

The two-way table shows the medal count for the top-performing countries in the 2012 Summer Olympics.Which statement is true?

The probability that a randomly selected silver medal was awarded to Great Britain is .

The probability that a randomly selected medal won by Russia was a bronze medal is .

The probability that a randomly selected gold medal was awarded to China is .

The probability that a randomly selected medal won by the United States was a silver medal is .

A 5-column table has 4 rows. The first column has entries A, B, C, Total. The second column is labeled X with entries 45, 20, 25, 90. The third column is labeled Y with entries 30, 10, 35, 75. The fourth column is labeled Z with entries 60, 25, 50, 135. The fifth column is labeled Total with entries 135, 55 110, 300.

C and Y are independent events because P(C∣Y) = P(Y).

C and Y are independent events because P(C∣Y) = P(C).

C and Y are not independent events because P(C∣Y) ≠ P(Y).

C and Y are not independent events because P(C∣Y) ≠ P(C).

The two-way table shows the number of books of each type in Eliza’s home.What is the probability that a randomly selected reference book is hardcover?

0.25

0.4

0.6

0.75

Information about a shipment of mirrors to a local store is shown.

164

208

Did you find these answers helpful?

Probability with Combinations and Permutations Answers

More from this Course

TRY EDGENUITY HACKS