The two-way table shows the number of books of each type in Eliza’s home. A 5-column table has 3 rows. The first column has entr
2 answers:
Answer:
The probability that a randomly selected reference book is hardcover is 0.4 ⇒ 2nd answer
Step-by-step explanation:
Lets write the table to solve the problem
→ : Fiction : Biographies : Reference : Total
→ Hardcover : 28 : 2 : 10 : 40
→ Paperback : 4 : 1 : 15 : 20
→ Total : 32 : 3 : 25 : 60
The probability of selected reference book is hardcover means the total outcomes is the reference book and the event is hardcover
∵ The total of the reference books is 25
∵ The number of reference books with hardcover is 10
- Probability rule for any event A = A outcomes / total outcomes
∴ P(hardcover/reference) =
- Simplify it by divide up and down by 5
∴ P(hardcover/reference) = = 0.4
∴ P(hardcover/reference) = 0.4
The probability that a randomly selected reference book is hardcover is 0.4
You might be interested in
Answer:
A.) 90,000$
B.) 4,000$
C.) 29,500$
D.)60,000$
E.)21,000$
