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
Nataly [62]
3 years ago
11

When Isaac commutes to work, the amount of time it takes him to arrive is normally distributed with a mean of 44 minutes and a s

tandard deviation of 5 minutes. Using the empirical rule, determine the interval that represents the middle 95% of his commute times.
Mathematics
1 answer:
mario62 [17]3 years ago
5 0

Answer:

[34,54]

Step-by-step explanation:

-The empirical rule states that the 95% of the sampled observations will fall within two standard deviations of the mean for a normally distributed population.

Where:

  • 68% is the first standard deviation
  • 95% is the second standard deviation about the mean
  • 99.7% is the 3rd standard deviation about the mean.

-Therefore. the middle 95% interval is calculated as:

CI=\mu+2\sigma\\\\=44\pm 2(5)\\\\=44\pm 10\\\\=[34,54]

Hence, the interval is [34,54]

You might be interested in
Need help to understand this question thank you :)
Novosadov [1.4K]
Complementary angles add up to equal 90 degrees. Knowing this, you can subtract 68 from 90. 90-68=22.

Hope this helps.
8 0
3 years ago
HELP!!!!! WILL MARK BRAINLIEST 10 POINTS
vichka [17]
Josh is incorrect, he did not examine the expression correctly, therefore his answer was wrong.

7 0
3 years ago
When lines meet or cross at the same point they are called
Luden [163]
I don’t know tbhhh .
3 0
3 years ago
Read 2 more answers
Can you please give the answer for this problem? :<br> 18+11v=w-13t for t
Kay [80]
18+11v=w-13t
18+11-w=-13t
13t=w-11v-18
t=1/13w - 11/13v - 1 5/13

Hope this helps :)
6 0
2 years ago
Can 1,3,7 form a triangle<br> Hurry I need help ASAP
blondinia [14]

Answer:

What

Step-by-step explanation:

ellaborate, if its just the numbers then no.

7 0
2 years ago
Other questions:
  • How much pure acid do you mix with 2L of 40% acid to get 70% acid
    10·2 answers
  • James tosses a coin 50 times. It lands on heads 23 times and on tails 27 times.
    10·2 answers
  • Please help meeeee. don't guess and please show work.
    5·2 answers
  • Anya and Jake started new jobs at the same time. Anya’s starting salary was $42,000, and she gets a $1,500 raise each year. Jake
    5·1 answer
  • In Colorado, the temperature was 17.2° below zero. if the temperature continues to drop 4° every hour, what is the new temperatu
    15·1 answer
  • Donny had a 10-foot board. He used the board to make two shelves. One shelf measured 4 feet 7 inches wide and the other shelf me
    11·1 answer
  • 9d-2d+4d=32 <br> Need help
    5·1 answer
  • I mainly need help with #10, thank you!
    6·1 answer
  • PLEASE HELP
    9·1 answer
  • The Coffee Cafe has cans of coffee that weigh 3 1/4 pounds each. The Cafe has 8 1/2 cans of coffee left. What is the total weigh
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!