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Arturiano [62]
4 years ago
8

Plz help 10 mins left!!!!!!

Mathematics
1 answer:
mr_godi [17]4 years ago
3 0
I think the ans is 5
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In a survey of 1000 social-media account holders aged 18 years and older conducted by a certain organization, it was found that
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I'm going to reword your question so it's easier to answer. I'm also going to pretend no one has 3 or more accounts because it's irrelevant.

22% have no accounts (220/1000)

What is the probability that 4 or more of the 10 participants has no account?

(220/1000)*(219/999)*(218/998)*(217/997)*(10 choose 4)
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A college student earned $246, $288, $234, and $276 over a four-week period. how much must he earn during the fifth week to have
anastassius [24]
Total=255*5=1275
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4 years ago
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Lostsunrise [7]

Answer:

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Step-by-step explanation:

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3 years ago
Question 12 (1 point) Given P(A) 0.34, P(A and B) 0.27, P(A or B) 0.44, what is P(B)? Answer in decimal form. Round to 2 decimal
Tema [17]

Answer:  The required probability of event B is P(B) = 0.37.

Step-by-step explanation:  For two events A and B, we are given the following probabilities :

P(A) = 0.34,    P(A ∩ B) = 0.27   and   P(A ∪ B) = 0.44.

We are to find the probability of event B, P(B) = ?

From the laws of probability, we have

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\\Rightarrow 0.44=0.34+P(B)-0.27\\\\\Rightarrow 0.44=0.07+P(B)\\\\\Rightarrow P(B)=0.44-0.07\\\\\Rightarrow P(B)=0.37.

Thus, the required probability of event B is P(B) = 0.37.

6 0
3 years ago
A farmer planted 3 types of trees on 22 acres of land. He planted 48 trees per acre. What is the total of trees the farmer plant
antoniya [11.8K]
Hey there! :D

He planted 48 trees per acre. Ignore the '3 types of trees' part. I think the question is trying to confuse you. Multiply 48 by 22.

48*22= 1056

The farmer has planted 1056 trees.

I hope this helps!
~kaikers 
7 0
4 years ago
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