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fenix001 [56]
3 years ago
7

A clerk has 4 different letters that need to go in 4 different envelopes. What is the probability that all 4 letters are placed

in the correct envelopes?
Mathematics
1 answer:
Burka [1]3 years ago
7 0

1/4 * 1/3 * 1/2 * 1/1 = 1/24 chance that all 4 letters are placed in the correct envelopes.

With the first envelope, there are 4 choices of letters, so the probability of picking the correct letter is 1/4.

With the second envelope, there are 3 remaining letters, so the probability of picking the correct letter is 1/3.

The same logic follows the the third and final letter.

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Your car can drive 300 miles on a tank of 15 gallons. How far can it drive on 40<br> gallons?
Flura [38]

Answer:

800

Step-by-step explanation:

since 300 divided by 15 is 20.

20 x 40= 800

3 0
3 years ago
Read 2 more answers
The average number of pounds of red meat a person consumes each year is 196 with a standard deviation of 22 pounds (source: amer
disa [49]
Given:
Mean, μ = 196
Std. dev., σ = 22
A sample size of 50 (> 30) is large enough to provide meaningful data.

The random variable is x = 200.
The z-score is
z = (x - μ)/σ = (200 - 196)/22 = 0.1818

From normal distribution tables, obtain
Prob(X < 200) = 0.572 = 57.2%

Answer: 57.2%
7 0
3 years ago
Find KL. Round to the nearest hundredth.<br> d<br> Sut of<br> .1.3<br> 48<br> L
VARVARA [1.3K]

Answer:

1.3

Step-by-step explanation:

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4 0
3 years ago
PLEASE HELP THIS IS DUE TODAY
Neporo4naja [7]

The Mean Absolute Deviation is commonly known as MAD. The correct statement about the situation is D.

<h3>What is the Mean Absolute Deviation?</h3>

The Mean Absolute Deviation, commonly known as MAD is the average of the difference between the mean and the data points, it can also be referred to as the average of the deviations of the data points from the mean.

Given Two months ago, the mean daily rainfall in a local city was 9.4 cm. The mean absolute deviation was 3.5 cm. Last month, the mean daily rainfall in that city was 11.5 cm, and the mean absolute deviation was 1.6 cm.

As it is known that more MAD for data points means more deviation of the data points from the mean, while it is vice versa if it is less. Therefore, we can conclude Last month, the amount of rain that fell each day varied less than the month before.

Hence, the correct statement about the situation is D.

Learn more about the Mean Absolute Deviation:

https://brainly.in/question/8755707

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5 0
1 year ago
5 1/10 divided by 1 1/5
hoa [83]
4.25 is the correct answer
5 0
3 years ago
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