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
Pani-rosa [81]
3 years ago
10

Below is the five-number summary for 144 hikers who recently completed the John Muir Trail (JMT). The variable is the amount of

time to complete the 212-mile hike from Yosemite Valley across the high Sierras to the top of Mount Whitney. Five-number summary: Minimum: 9 days Q1: 18 days Median: 21 days Q3: 28 days Maximum: 56 days If we use the 1.5 * IQR rule to determine whether there are any outliers, what is the left boundary?
Mathematics
1 answer:
bearhunter [10]3 years ago
6 0

Answer:

The IQR is given by:

IQR = Q_3 -Q_1 = 28-18= 10

If we want to find any possible outliers we can use the following formulas for the limits:

Lower= Q_1 - 1.5 IQR

Upper= Q_3 + 1.5 IQR

And if we find the lower limt we got:

Lower= Q_1 - 1.5 IQR= 18-1.5*10 = 3

Upper= Q_3 + 1.5 IQR= 28+1.5*10= 43

So then the left boundary for this case would be 3 days

Step-by-step explanation:

For this case we have the following 5 number summary from the data of 144 values:

Minimum: 9 days

Q1: 18 days

Median: 21 days

Q3: 28 days

Maximum: 56 days

The IQR is given by:

IQR = Q_3 -Q_1 = 28-18= 10

If we want to find any possible outliers we can use the following formulas for the limits:

Lower= Q_1 - 1.5 IQR

Upper= Q_3 + 1.5 IQR

And if we find the lower limt we got:

Lower= Q_1 - 1.5 IQR= 18-1.5*10 = 3

Upper= Q_3 + 1.5 IQR= 28+1.5*10= 43

So then the left boundary for this case would be 3 days

You might be interested in
Miss lead says that if y varies directly with x and y=15 when x=-3, then y=-20 when x=4. Is she correct? Answer in complete sent
gizmo_the_mogwai [7]

Answer:

Yes,  she is correct.

Step-by-step explanation:

y = kx   is direct variation

15 = k*-3

k = -5.

So the equation of variation is

y = -5x

When x = -4:

y -5*-4 = 20.

6 0
2 years ago
In each diagram, line p is parallel to line f, and line t intersects lines p and f. Based on the diagram, what is the value of x
ololo11 [35]
X would be 84 degrees, since its corresponding angle would be worth 84.
Hope this helped!
4 0
3 years ago
An artist used 6 tubes of red paint, 2 tubes of yellow paint, 13 tubes of white paint, and 9 tubes of blue paint for a mural. Wh
dmitriy555 [2]
Since there are 6 tubes of red paint and 13 tubes of red paint the ratio of red to white would be 6:13
6 0
3 years ago
Find the simple interest earned after 5 years on $1200 invested at 2% annual interest rate
makkiz [27]
Multiply principle by time by rate
1200(.02)(5)
120
8 0
3 years ago
I need someone to help me with this
n200080 [17]
Why do I need to add 20 characters?

7 0
3 years ago
Other questions:
  • Y2-y1 and y=me+b<br> Plzz help me with this
    7·1 answer
  • You are buying batteries, a stereo, and some CDs from the I.B. Electronics store. You can buy from this store online or in a phy
    8·2 answers
  • Hello could u please help with this question??
    13·2 answers
  • |6x-3|+4&lt;19<br> what can x be?
    6·1 answer
  • John paid $222 for four hours of skiing and two hours boating. He paid $213 for two hours skiing and three hours boating. What i
    8·1 answer
  • What is 123 times 35?
    6·1 answer
  • PLEASE HELP ME I NEED HELP​
    7·1 answer
  • In a poll of 745 randomly selected adults, 591 said that it is morally wrong to not report all income on tax returns. Use a 0.01
    11·1 answer
  • Algebra is my bane...
    13·1 answer
  • 1.what is the y-intercept f (x) = 3x+8/x-4?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!