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Anna71 [15]
3 years ago
13

1. State whether the following is a classical or Bayesian (subjective) probability, and explain why (1 pt for correct id and 1 p

t for explanation): a. The chance of getting a 5 on a fair 6-sided die is 1/6. b. The chance that the shelter-at-home restrictions in the SF Bay Area will be lifted by May 3 is 50%. c. There is a 95% chance of an additional major correction (drop of 20% or more) in the stock market in the next 2 months. d. The chance a baby will be born male is 51%. (Hint: this). e. If you flip a fair coin many times, about 50% of the time you will have gotten heads.
Mathematics
1 answer:
AleksAgata [21]3 years ago
5 0

Answer:

a. Classical Probability.

b. Classical Probability.

c. Bayesian Probability

d. Bayesian Probability.

e. Classical Probability.

Explanation:

In classical probability, each event has an equal likelihood of occurring.

However, Bayesian probability is a probability based on belief or a state of knowledge.

a. The chance of getting a 5 on a fair 6-sided die is 1/6.

This is a Classical Probability. There are 6 sides and getting each side has an equal probability of 1/6.

b. The chance that the shelter-at-home restrictions in the SF Bay Area will be lifted by May 3 is 50%.

This is also a Classical Probability. The are two possible occurrences, either it will be lifted or not and each has an equal probability of 50%.

c. There is a 95% chance of an additional major correction (drop of 20% or more) in the stock market in the next 2 months.

This is an example of Bayesian Probability as it is based on the belief of the speaker probably from his/her analysis of the trend in the stock market.

d. The chance a baby will be born male is 51%.

This is an example of Bayesain Probability. Each gender is supposed to have an equal chance of 50%.

e. If you flip a fair coin many times, about 50% of the time you will have gotten heads.

In a fair coin, the Probability of getting a head or a tail is equal. Since the probability given is 50%, it is a Classical Probability.

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Ok what is 1/5 + 9/20
lianna [129]
1/5+9/20=4/20+9/20=14/20
6 0
3 years ago
Please please help please
cricket20 [7]

Answer:

3 and 2

Step-by-step explanation:

7 0
4 years ago
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Find the length of MT
Mnenie [13.5K]

Answer:

Solution,

x+12+8x-2=180° (Linear pair)

or, 9x+10=180°

or, x+10=180/9

or, x=20-10

x=10

The length of MT

=8x-2

=8×10-2

=80-2

=78

hope it helps you

7 0
3 years ago
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Can someone help with this question, answer asap. I’ll give brainliest to the first best answer. Thanks.
postnew [5]

Answer:

2/3 on technique

1/9 on fitness exercise

2/9 on strength exercise


Step-by-step explanation:

He spends 2/ (2 + 1) = 2/3 of his time on technique

That leaves him with 1/3 of his time exercising

Time spent on fitness = 1 (1+2)  * 1/3

= 1/3 * 1/3 = 1/9 of his time

Time spent on strength exercise = 2/3 * 1/3  = 2/9

8 0
3 years ago
Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoc
Bingel [31]

Answer:

We need a sample size of at least 719

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

How large a sample size is required to vary population mean within 0.30 seat of the sample mean with 95% confidence interval?

This is at least n, in which n is found when M = 0.3, \sigma = 4.103. So

M = z*\frac{\sigma}{\sqrt{n}}

0.3 = 1.96*\frac{4.103}{\sqrt{n}}

0.3\sqrt{n} = 1.96*4.103

\sqrt{n} = \frac{1.96*4.103}{0.3}

(\sqrt{n})^{2} = (\frac{1.96*4.103}{0.3})^{2}

n = 718.57

Rouding up

We need a sample size of at least 719

6 0
3 years ago
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