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Elena L [17]
3 years ago
14

What's 4/5 times 3/11 times 1/4

Mathematics
2 answers:
11111nata11111 [884]3 years ago
5 0

Answer:

The answer I got was 0.054

Step-by-step explanation:

First: I did 4/5, 3/11, and 1/4. After dividing those, I got .8, .27, and .25.

Second: Then I multiplied all those together and got the answer up above.

I'm truly sorry if I get it wrong and please tell me if it is wrong or not...but its fine if you dont. :)

sleet_krkn [62]3 years ago
3 0
I think it is 0.05 but i do if it is right your welcome if it is wrong I'm sorry
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A packet of garden seeds contains 250 seeds. The information printed on the packet indicates that the germination rate for this
Westkost [7]

Answer:

Expectation=240

standard deviation=3.098

Step-by-step explanation:

This is a binomial probability function with n=250 and probability of success is 96%

-The expected value is calculated as:

E(X)=np\\\\=250\times 0.96\\\\=240

Hence, the expected germination is 240 seeds

b. From a above, we have the value of p=0.96 and n=250.

The standard deviation of germination is therefore calculated using the formula:

\sigma=\sqrt{np(1-p)}, \ \ \ \\\\=\sqrt{250\times 0.96(1-0.96)}\\\\\\=3.098

Hence, the standard deviation of germination is 3.098

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3 years ago
There were 32 skaters at the rink on Friday. On Saturday, there were 27 skaters at the
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Answer: 32 + 27 = 59

Step-by-step explanation:

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Answer:

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2 years ago
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Anastasy [175]
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If two students from this college are selected at random, what is the probability that they are both males?
igor_vitrenko [27]

Answer:

P(A_1 and A_2) = P(A_1) *P(A_2)= 0.3*0.3 =0.09

Step-by-step explanation:

Assuming this problem :"Only 30% of the students in a certain liberal arts college are males. If two students from this college are selected at random, what is the probability that they are both males?"

Previous concepts

An independent event is an "event that has no connection to another event's chances of happening ". For this case we can assume that if one person is male and if we select another one the probability that this one would be male or female is totally indepedent from the first selection.

When we have two independent events let's say A and B and we want to find the probability that both events occurs at the same time we can use the following formula:

P(A and B) = P(A)*P(B)

Solution to the problem

We can define some notation:

A_1 first person selected is a male

A_2 second person selected is male

On this case we want the probability that both would be males. And we can express this like this on math terms:

P(A_1 and A_2)

For this case we can assume that the two events are independent. And in order to find the probability for two events independents events we just need to multiply the probabilities of each one like this:

P(A_1 and A_2) = P(A_1) *P(A_2)= 0.3*0.3 =0.09

5 0
3 years ago
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