1answer.
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
Ne4ueva [31]
3 years ago
15

Andrew drives through 5 intersections with stoplights on his way to work. He records that he is stopped by a red light in 2 of t

he 5 intersections. If he uses this as his general probability of getting stopped at a red light on his way to or from work, how many times can he expect to be stopped at a red light over the next 40 times he drives through an intersection on his route? Andrew should expect to be stopped times.
Mathematics
1 answer:
photoshop1234 [79]3 years ago
4 0

Answer:

He should expect to be stopped a total of 16 times

Step-by-step explanation:

What the question is saying is that out of every 5 intersections, he would be stopped at 2.

Now, for forty times in which he passes through an intersection , we want to know the number of times in which he would be stopped

In this case we only need to multiply the probability by the number of times in which he passes an intersection and that would be 2/5 * 40 = 16 times

You might be interested in
20 ounces into pounds'
evablogger [386]

Answer:

1.25

Step-by-step explanation:

20 ounces would be 1.25 pounds.

Please mark as brainliest! Thanks! If you need anymore help just let me know! :)

7 0
2 years ago
Read 2 more answers
Can someone help me simplify (2n + 2) + (8 + 8)
emmasim [6.3K]

Answer:

7

Step-by-step explanation:

1. Lets Combine Like Terms. The only combineable terms are 8 and 8. So if we combine them they will equal 16. And we will have (2n+2)=16

2. Let's isolate the variable. We can do this by subtracting 2 from both sides. This will come out to 2n+14.

3. Let's further isolate the variable. We can do this by dividing both sides by two, which will finally come out to n=7

3 0
3 years ago
Find the value of x.
OverLord2011 [107]

Answer:

5

Step-by-step explanation:

4 0
2 years ago
Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune tellers. Use a 0.02 margin of er
Brrunno [24]

Answer: 2172

Step-by-step explanation:

Formula to find the sample size n , if the prior estimate of the population proportion(p) is known:

n= p(1-p)(\dfrac{z^*}{E})^2 , where E=  margin of error and z* = Critical z-value.

Let p be the population proportion of adults have consulted fortune tellers.

As per given , we have

p= 0.20

E= 0.02

From z-table , the z-value corresponding to 98% confidence interval = z*=2.33

Then, the required sample size will be :

n= 0.20(1-0.20)(\dfrac{2.33}{0.02})^2

n= 0.20(0.80)(116.5)^2

n= 2171.56\approx2172

Hence, the required sample size = 2172

3 0
3 years ago
A cake recipe calls for 45 cup of chocolate. If a baker has 73 cups of chocolate, the baker can make a maximum of how many cakes
lora16 [44]

Answer:

2 batches

Step-by-step explanation:

I need at least 20 words so don't mind this :PPPPPPPP

3 0
2 years ago
Other questions:
  • Which is a characteristic of a studio apartment?
    10·1 answer
  • Today, Olivia has $127 in her savings account. She will deposit $5 into the account each week. Given x>0 , which function rep
    8·1 answer
  • At summer camp the ratio of boys to girls was 7:2 If there were 21 boys how many girls were there?
    11·1 answer
  • (9.1 × 109)(7.5 × 102) What is the exponent of the power in scientific notation?
    11·2 answers
  • Factor 7a^3+28a^2-35a
    5·2 answers
  • PLZ HELP !!!! Only do B) and C)
    15·1 answer
  • What is the exact value of cos 5pi/4 radians?
    15·1 answer
  • Which is the equation of a line that has a slope of 4 and passes through point (2,5)?
    5·2 answers
  • 4. What percent of all computers sold during the entire week<br><br> were sold on Friday!
    9·1 answer
  • The sum of a number and 4
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!