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eduard
3 years ago
14

A psychologist thinks that listening to Mozart helps people think. She gives subjects a set of puzzles and measure how many they

solve in 5 minutes while listening to Mozart. From data on a very large number of simulations, the psychologist gets the attached probability model. What is the probability that a subject solves more than 1 puzzle is _______.
Mathematics
1 answer:
BigorU [14]3 years ago
4 0

Answer: 0.8

Step-by-step explanation:

Let's assume that 5 puzzles were solved in 5mins. That is, 1min for each puzzle to be solved.

From our assumption, our sample size will be 5.

The probability that a subject will solve more than 1 puzzle will be number of occurrence from 2 to 5 which is 4.

This gives: 4/5 = 0.8 to one decimal place.

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Alex bikes 2 3/4 miles. Then, she runs 1 2/4 miles. The distance she bikes is how many times the distance she runs?
Svet_ta [14]

Answer:

1.83 times

Step-by-step explanation:

Take the distance biked divided by the distance run.

2 3/4 / 1.5 = 1.83 times.

This means that Alex biked 1.83 times more than the distance she ran.

If this answer is correct, please make me Brainliest!

4 0
2 years ago
A triangle has angles that measure 8xº,
romanna [79]

Answer:

8xº = 90º

6xº = 67.5º

2xº = 22.5º

x = 11.25°

Step-by-step explanation:

The sum of angles in a triangle is 180°

8xº + 6xº + 2xº = 180º

16xº = 180º

x = 11.25º

8xº = 11.25(8) = 90º

6xº = 67.5º

2xº = 22.5º

Hope this helps :)

3 0
3 years ago
Which phrase best defines a rhombus?
Whitepunk [10]
B. a parallelogram with four congruent sides

6 0
3 years ago
What's 67% as a decimal?
WARRIOR [948]
0.67, because when you have a percent like that you just need to move the decimal 2 places to the left.
7 0
3 years ago
Read 2 more answers
Find the missing side of this right triangle.
Alborosie

Answer:

13

Step-by-step explanation:

it's a 5,12,13 triangle

and we can find the sides by Pythagorean theorem:

a^2 + b^2 = root of c

25 + 144 = 169

root of 169 = 13

3 0
2 years ago
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