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
vampirchik [111]
3 years ago
14

Use a spinner to find the theoretical probability of spinning an even number. What is the theoretical probability of spinning an

even number?
(The spinner has 8 numbers)
Mathematics
2 answers:
stiv31 [10]3 years ago
7 0

Answer:

4/8

Step-by-step explanation:

There are half even and half odd numbers on a spinner so it is 1/2 of 8 which is 4. Then you put the 4 over 8 to gain your probability.

nirvana33 [79]3 years ago
4 0

Answer:

1/2.

Step-by-step explanation:

The even numbers  from 1 to 8 are 2, 4, 6 and 8 so the probability of spinning  an even number = 4/8 = 1/2.

You might be interested in
What is the value of x in the equation 2x + 3y = 6 ?
erastovalidia [21]

Answer:

x = -3/2y + 3

Step-by-step explanation:

2x + 3y = 6

2x = -3y + 6

x = -3/2y + 3

3 0
3 years ago
Does 2/3 and 10/16 form a proportion? explain
Romashka [77]
No because you would not be able to divide them by a number and get the same answer so no they are not proportional
5 0
3 years ago
Read 2 more answers
There are two machines available for cutting corks intended for use in wine bottles. The first produces corks with diameters tha
uranmaximum [27]

Answer:

0.6826 = 68.26% probability that the first machine produces an acceptable cork.

0.933 = 93.3% probability that the second machine produces an acceptable cork.

The second machine is more likely to produce an acceptable cork.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

What is the probability that the first machine produces an acceptable cork?

The first produces corks with diameters that are normally distributed with mean 3 cm and standard deviation 0.10 cm, which means that \mu = 3, \sigma = 0.1

Acceptable between 2.9 and 3.1, which means that this probability is the pvalue of Z when X = 3.1 subtracted by the pvalue of Z when X = 2.9.

X = 3.1

Z = \frac{X - \mu}{\sigma}

Z = \frac{3.1 - 3}{0.1}

Z = 1

Z = 1 has a pvalue of 0.8413

X = 2.9

Z = \frac{X - \mu}{\sigma}

Z = \frac{2.9 - 3}{0.1}

Z = -1

Z = -1 has a pvalue of 0.1587

0.8413 - 0.1587 = 0.6826

0.6826 = 68.26% probability that the first machine produces an acceptable cork.

What is the probability that the second machine produces an acceptable cork? (Round your answer to four decimal places.)

For the second machine, we have that \mu = 3.04, \sigma = 0.04. Same probability we have to find out. So

X = 3.1

Z = \frac{X - \mu}{\sigma}

Z = \frac{3.1 - 3.04}{0.04}

Z = 1.5

Z = 1.5 has a pvalue of 0.9332

X = 2.9

Z = \frac{X - \mu}{\sigma}

Z = \frac{2.9 - 3.04}{0.04}

Z = -3.5

Z = -3.5 has a pvalue of 0.0002

0.9332 - 0.0002 = 0.933

0.933 = 93.3% probability that the second machine produces an acceptable cork.

Which machine is more likely to produce an acceptable cork?

Second one has a higer probability, so it is more likely to produce an acceptable cork.

6 0
3 years ago
If BC = 6 and AD = 5, find DC.
Yanka [14]

Answer: DC = 4

Step-by-step explanation: Because it is going 1 subtract everytime

4 0
3 years ago
11. Julie huys 19 identical calculators.
Bond [772]

Answer is £234.36

143.64/19=7.56

7.56x31=£234.36

Hope this helps

4 0
3 years ago
Read 2 more answers
Other questions:
  • How many 1/3 servings are available in 6 ounces
    7·1 answer
  • Please I need help and I need more practice one this please
    10·1 answer
  • Is this right? The side with larger angle will be longer , see picture.
    7·1 answer
  • What is value of x? Please help! Will reward
    11·1 answer
  • lynn is selling tickets to the play. On the first day of ticket sales she sold 5 adult tickets and 9 children tickets for a tota
    11·1 answer
  • I’m not sure Wht to do?
    9·1 answer
  • 1. Ashton rode his bicycle 3.25 miles in 12 minutes. What was Ashton's average rate in miles per hour
    14·1 answer
  • Steve increases his math average by nine points over a period of 15 weeks how many points did he per week did his average increa
    15·2 answers
  • (4,-5) reflected over y = x
    15·1 answer
  • Solve: |4x+3|=|2x+1|
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!