answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rus_ich [418]
1 year ago
14

A survey finds that 40% of students ride in a car to school. Eri would like to estimate the probability that if 3 students were

randomly selected, only 1 rides in a car. To simulate this probability, she lets the numbers 0, 1, 2, and 3 represent a student who rides in a car to school and then 4, 5, 6, 7, 8, and 9 represent a student who does not ride in a car to school. She then has a computer randomly select 3 numbers. She repeats this process for 20 trials. The results of these trials are shown in the table.
468 380 120 220 553 945 935 607 473 490 074 981 692 518 408 954 943 389 594 569

Based on this simulation, what is the estimated probability that only 1 of 3 randomly selected students rides in a car to school?
Mathematics
2 answers:
g100num [7]1 year ago
8 0
First, we analyze the data given:

468 = no student rides a car to school
380 = 2 students 
120 = 3 students
220 = 3 students
553 = 1
945 = none
935 = 1
607 = 1
473 = 1
490 = 1
074 = 1
981 = 1
692 = 1
518 = 1
408 = 1
954 = none
943 = 1 
389 = 1
594 = none 
569 = none 

Total = 20 trials
Number of 1 student trial = 12

Therefore, the probability <span>that only 1 of 3 randomly selected students rides in a car to school is 12/20 = 0.6</span><span />
Butoxors [25]1 year ago
3 0
The answer is 0.60 I know cause I took the test
You might be interested in
The pH scale measures how acidic or basic a substance is. Lemon juice is said to have a pH of less than 4 and greater than 1.5.
castortr0y [4]

Let's say x is J because it's Lemon Juice.

It's said that the pH of J is less than 4 so: pH(J) < 4 and pH(J) is greater than 1.5 so: pH(J) > 1.5

Now we can construct:

1.5 < pH(J) \wedge pH(J) < 4

Or simply:

1.5 < pH(J) < 4

We can also write this with an interval:

pH(J)\in(1.5, 4)

Hope this helps.

r3t40

8 0
1 year ago
The sampling distribution of certain statistical measures shows a normal distribution which of the following is an unbiased esti
svlad2 [7]

Answer:

A) Proportion.

Step-by-step explanation:

The distribution of sample proportions leads or may tends to approximate a normal distribution and is an unbiased estimator that has a graph that is usually distributed and is not skewed. In other words, simply, we can also say that the population proportion is basically defined to be as the mean of the sample proportion. The population proportion is basically equaled the expected value of the sample proportion.

4 0
1 year ago
Read 2 more answers
Which graph represents an exponential function?
maksim [4K]

Answer:

the bottom one

Step-by-step explanation:

all exponential graphs look similar to that

5 0
1 year ago
Read 2 more answers
QUESTION 4 of 10: Your restaurant purchases 1,625 bottles of Chablis per year. The annual increase of purchases has been 6%. If
Alina [70]

Answer:

A.

Step-by-step explanation:

6% of 1,625 in 97.5

4 0
1 year ago
Read 2 more answers
What is 13/56 + 5/7=
Darya [45]
<span>The question is asking us to calculate : 13/56 + 5/7. To do this we have first to find the common denominator for these fractions. We know that 56 = 7 * 8, so the common denominator is 56. Then we will multiply the numerator and the denominator of the second fraction by 8. 5/7 * 8/8 = 40/56. Finally we will add : 13/56 + 40/56 = 53/56 and that is the final answer, which can not be simplified. Answer: 53/56</span>
7 0
1 year ago
Other questions:
  • What is the area of triangle LMN? 3 square units 4 square units 6 square units 8 square units
    12·2 answers
  • A landscaper makes a $2,000 profit in a week when he services 25 lawns. He makes a $600 profit in a week when he services 11 law
    13·2 answers
  • a local charity held a crafts fair selling donated,handmade items. Total proceeds from the sale were $1,875. A total of 95 items
    11·1 answer
  • It takes 8 minutes for Byron to fill the kiddie pool in the backyard using only a handheld hose. When his younger sister is impa
    9·2 answers
  • The law of cosines is a^2+b^2-2abcosC=c^2. Find the value of 2abcosC.
    13·2 answers
  • What is the mean of the following data values ? 22,37,49,15,92
    14·2 answers
  • A furniture store is having a sale on sofas and you're going to buy one. The advertisers know that buyers get to the store and t
    6·1 answer
  • The graph shows how many apples Erin can pick if she maintains a constant rate. What is the linear equation for this relationshi
    12·1 answer
  • A tank with a capacity of 1000 L is full of a mixture of water and chlorine with a concentration of 0.02 g of chlorine per liter
    15·1 answer
  • Samantha went to a concession stand and bought three pretzels and four sodas and paid a total of $11.25 for them. Raza went to t
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!