All categories

2 years ago

According to the tree diagram below, what is the probability that someone buys a book that is hardcover and nonfiction

Mathematics

1 answer:

Rasek [7]2 years ago

5 0

Whenever you have a decision tree like this, the probability of reaching a specific leaf is the multiplication of the probabilities of each step you have to reach the leaf.

So, in order to reach the "hardcover and nonfiction" leaf, we have to take the "buys hardcover" branch (probability 0.35), and then the "buys nonfiction" branch (probability 0.55).

Given what we said above, the probability for "hardcover and nonfiction" is

$0.35\cdot 0.55=0.1925$

You might be interested in

Maya needs $58 to go on a field trip. She has saved $18.50. She earns $6.50 per hour cleaning her neighbor's garden, and she ear

insens350 [35]

She has $18.50 so she needs $39.50.

6.50×3= 19.50

18.50+19.50= 38

5.25×4=21

38+21=59

Maya would have enough money to go on the trip.

6 0

2 years ago

Whats the value of x? 2−(3x−4)=2x−9

coldgirl [10]

Answer:

x=3

Step-by-step explanation:

Use pemdas!

First use distributive property to get rid of the parenthesis, by multiplying 2 by 3x and -4. Then combine like terms and use inverse operations to simplify each side until you get it down to just x! Hope this helped! :)

3 0

2 years ago

NEED HELP!! NO Absurd answers!

Orlov [11]

Answer:

Approximately 94% of theaters charge more than $10 to see the movie.

Step-by-step explanation:

Use a calculator with distribution functions such as normalcdf(

Here we have normalcdf(10,1000,11.80, 1.15) = 0.941

Approximately 94% of theaters charge more than $10 to see the movie. This agrees with the last answer choice.

8 0

2 years ago

This graph shows how much Anthony earns babysitting, compared with the number of hours he works. Select the correct statement ab

dimaraw [331]

B. For each hour he works, his earnings go up by $8

3 0

2 years ago

Simplify the expression (-3)(8)/(-6)

Daniel [21]

Answer:

Step-by-step explanation:

(-3) * (8/-6)

3 * 8/6

3 * (2 * 4)/6

3 * (2 * 4)/(2 * 3)

3 * (4/3)

7 0

2 years ago