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vivado [14]
3 years ago
11

On any day, the probability of rain is 0.3. The occurrence of rain on any day is independent of the occurrence of rain on any ot

her day. Calculate the probability that, starting with tomorrow, the second day ofrain will occur within 5 days
Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0

Answer:

0.47178 = 47.178%

Step-by-step explanation:

Put simply, this question is asking the probability of having rain atleast twice in the next 5 days. The easiest way that comes to mind is reverse count - find the probability of it not happening. There are two cases for this:

Raining only once:

This has a .7^4 * 0.3 * 5 chance

Raining no times:

This has a .7^5 chance

Adding these together you get 0.52822

This is the inverse probability, so to find the actual probability, subtract it from 1.

P = 0.47178

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qwelly [4]
20 + 40x = 260
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8 0
3 years ago
Jason purchased 12 shirts for the members of a school club. Each shirt cost $5.50. Jason
Alex Ar [27]

Answer:

52 dollars and 47 cents, or 52.47

Step-by-step explanation:

First, multiply 12 and 5.50, then you should get 66.00. Then, take the 25% discount, and divide it by a hundred, you should get 0.25, now multiply 0.25 and 66.00. You should get 16.50, thats your discount, so subtract 16.50 from 66.00, you should get 49.50. Now for the sales tax, divide 6.0 by 100, you should get 0.06. Now multiply 0.06 and 49.50, you should get 2.97, thats your tax, add it to 49.50, and you get 52.47 so BOOM, thats your answer, your welcome

5 0
3 years ago
Estimate the value of<br>9304 ÷93 =​
LuckyWell [14K]

Answer:

100

Step-by-step explanation:

Round 9304 to 9300. 9300/93 is just 100 since 100 * 93 = 9300 (this is something easily recognizable).

6 0
3 years ago
A student wrotw a variable expression n-5 for the word phrase n less than 5. explain the students error
zheka24 [161]
Less than does mean minus, but when the question says less than some number, that number goes first. should have written 5-n
3 0
3 years ago
Mai conducted an experiment by flipping a fair coin 200 times. The coin landed heads up 110 times. Which statement about
Nitella [24]
Answer:

B

Explanation:

Theoretical probability is a method to express the likelihood that something will occur. It is calculated by dividing the number of favorable outcomes by the total possible outcomes.

The empirical probability, relative frequency, or experimental probability of an event is the ratio of the number of outcomes in which a specified event occurs to the total number of trials, not in a theoretical sample space but in an actual experiment.
8 0
3 years ago
Read 2 more answers
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