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
Lemur [1.5K]
3 years ago
14

If an hourglass takes an average of 1 hour to empty a full cycle, what probability of time does it take longer than 72 minutes i

f the standard deviation is 5 minutes? (Make sure to use a percentage!)
Mathematics
1 answer:
Arturiano [62]3 years ago
7 0

Answer:

0.82%

Step-by-step explanation:

First find the z-score.

z = (x − μ) / σ

z = (72 − 60) / 5

z = 2.4

Use a chart or calculator to find the probability.

P(Z > 2.4) = 1 − P(Z < 2.4)

P(Z > 2.4) = 1 − 0.9918

P(Z > 2.4) = 0.0082

You might be interested in
Let's assume a typical New Zealand farmer raising sheep owns 250 hectares and averages about 10 livestock units per hectare. If
Kipish [7]

Answer:

$50,000

Step-by-step explanation:

We have an average of 10 livestock units per hectare

The number of units in 250 hectares will be;

250 * 10 = 2,500 units

Amount earned per unit is $20 per year

So, for 2,500 units, we have

2500 * $20 = $50,000

4 0
2 years ago
How many ways can you distribute 4 different balls among 4 different boxes?
Sav [38]

Answer:

16?? not sure.......

6 0
2 years ago
Read 2 more answers
Need help to answer please
NNADVOKAT [17]

Answer:

0I do not know

Step-by-step explanation:

you good post on this post y el que me and the en el mundo del abecedario y la música que ✨ 7th en is the trail from a 6th street in

6 0
3 years ago
What's an integer for 300ft above sea level
jeyben [28]
Above is postive. So the answer is +300
3 0
3 years ago
Read 2 more answers
In the pictures down below<br><br>Can anyone help? Fractions and percents<br><br> 
wariber [46]
1st Picture:
3)- \frac{6}{7} +\frac {10}{11}&#10;\\\\LCD:77&#10;\\\\\frac{6}{7}* \frac{11}{11} +  \frac{10}{11}*\frac{7}{7}= \frac{66}{77} + \frac{70}{77}  = \frac{136}{77} = 1\frac{59}{77} &#10; \\  \\ 4) 3\frac{6}{7}* 2 \frac{1}{10}=  \frac{27}{7} * \frac{21}{10} = \frac{567}{70} =\frac{81}{10} = 8\frac{1}{10}&#10;\\\\5)2\frac{1}{2}+3\frac{1}{3}&#10;\\\\LCD: 6&#10;\\\\ 2\frac{3}{6} + 3\frac{2}{6} =5\frac{5}{6}&#10;\\\\6)5\frac{1}{8}*-6\frac{6}{11}=\frac{41}{8}* \frac{72}{11}=\frac{2952}{88}=\frac{369}{11}=33\frac{6}{11}

2nd Picture:

1)80 percent of 80 = .8*80 =64&#10;\\\boxed{64}&#10;\\\\2)95percent of 100=.95*100=95&#10;\\\boxed{95}
7 0
3 years ago
Other questions:
  • 20 POINTS Can I get some help with this math please? IMPORTANT
    5·1 answer
  • 9.) Determine the distance between -10 and 17. Use the number
    9·1 answer
  • Find x if y=-2 4x-6/y=15a. 9/2b.5c.3d.-6/23
    15·2 answers
  • <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%5Cfrac%7Bx%5E%7B2%7D-x-2%20%7D%7Bx-5%7D" id="TexFormula1" title="f(x) = \fra
    8·1 answer
  • What is 732÷42 in rounding form?
    5·2 answers
  • Do<br> O PI11110100<br> 2. Use the prime factorizations of 72 and 120 to find their LCM.
    12·1 answer
  • Why does 24 has 4 factor
    13·1 answer
  • Look at the figure. i’ll give you brainlest!!!
    9·1 answer
  • PLEASE HELP!!!!!!!!!!!!!!!!!!!!!
    15·1 answer
  • Multiply.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!