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
snow_tiger [21]
3 years ago
8

If you roll a number cube 12 times, about how many times would you expect to roll a 5 or 6

Mathematics
1 answer:
Marrrta [24]3 years ago
6 0
You have a 1/3 chance each time you role So 1/3 x 12 = 4 times that you would role a 5 or a 6
You might be interested in
What was the rating of adventure time 3x3
ivann1987 [24]

Answer:

9

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Need help pls help me
Kryger [21]

y = \frac{3}{4} x + ( - 2)

4 0
3 years ago
The amounts a soft drink machine is designed to dispense for each drink are normally distributed, with a mean of 12.1 fluid ounc
Ludmilka [50]

Answer:

\mu = 12.1\\\sigma = 0.3

a) Find the probability that the drink is less than 11.9 fluid ounces

We are supposed to find P(x<11.9)

x= 11.9

We will use z score formula :

z=\frac{x-\mu}{\sigma}

z=\frac{11.9-12.1}{0.3}

z=-0.67

Refer the z table

So, P(z<-0.67) = 0.2514

Hence the probability that the drink is less than 11.9 fluid ounces is 0.2514

b)Find the probability that the drink is between 11.6 and 11.9 fluid ounces

x= 11.6

We will use z score formula :

z=\frac{x-\mu}{\sigma}

z=\frac{11.6-12.1}{0.3}

z=-1.67

x= 11.9

We will use z score formula :

z=\frac{x-\mu}{\sigma}

z=\frac{11.9-12.1}{0.3}

z=-0.67

We are supposed to find P(11.6<x<11.9)

So, P(11.6<x<11.9)= P(x<11.9)-P(x<11.6)

P(-1.67<z<-0.67)= P(z<-0.67)-P(z<-1.67)

Refer the z table

P(-1.67<z<-0.67)= P(z<-0.67)-P(z<-1.67)

P(-1.67<z<-0.67)= 0.2514-0.0475

P(-1.67<z<-0.67)= 0.2039

So, the probability that the drink is between 11.6 and 11.9 fluid ounces is 0.2039.

c)Find the probability that the drink is more than 12.6 fluid ounces

We are supposed to find P(x>12.6)

x= 12.6

We will use z score formula :

z=\frac{x-\mu}{\sigma}

z=\frac{12.6-12.1}{0.3}

z=1.67

Refer the z table

P(x>12.6)=1-P(x<12.6)

P(z>1.67)=1-P(z<1.67)

P(z>1.67)=1-0.9525

P(z>1.67)=0.0475

Hence  the probability that the drink is more than 12.6 fluid ounces is 0.0475

d) Is the drink containing more than 12.6 fluid ounces an unusual event?

Since p value is less than  alpha (0.05)

Answer = No, because the probability that a drink containing more than 12.6 fluid ounces is less than 0.05, this event is not unusual.

3 0
3 years ago
Assume that the random variable X is normally distributed with mean μ=80 and standard deviation σ=18. Find the 11th percentile f
choli [55]
<span>The value you are looking for is 70 - 8.4 = 61.6 Hope it helps

</span>
6 0
3 years ago
Simplify there is a picture
kicyunya [14]
2 to the power of 20/3 to the power of 8. 2^20/3^8 for short.
5 0
3 years ago
Other questions:
  • the cost of admission to the Baytown zoo is $ 10:50 for each senior citizen,$15:75 for each adult ,and $8:25 for each child A fa
    14·1 answer
  • A vertical pole 12 feet high casts a shadow 8 feet long on the ground. At the same time, a nearby tower casts a 40 feet long sha
    11·2 answers
  • How to solve x^4+4x-1=0 ? ...?
    6·1 answer
  • In an experimental study on friendliness and tipping, every alternate customer to whom the waiter is extra friendly toward are r
    7·1 answer
  • Let f(x)= (x^2+3x-4) and g(x)= (x+4)
    7·2 answers
  • Help please!<br> Much appreciated
    6·2 answers
  • 8 pts
    5·1 answer
  • I need help ASAP please please
    13·1 answer
  • 7<br> 3<br> ×<br> √<br> 7<br> as a single power of 7
    5·2 answers
  • Help help help help math
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!