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lord [1]
3 years ago
12

Please help i have 1 hour to compleate

Mathematics
2 answers:
liubo4ka [24]3 years ago
4 0
It’s the 2nd one. Jesus Jenny is tall she’s like slenderman or somethin
solniwko [45]3 years ago
3 0

Answer:

2nd one is right

I am confused boii

Step-by-step explanation:

LIVE AND LET LIVE music on the outline map of india mark

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Suppose that you randomly draw one card from a standard deck of 52 cards. After writing down which card was drawn, you replace t
34kurt

Answer:

The probability is 0.0775

The expected value is 4.75 clubs

The standard deviation is 1.8875 clubs

Step-by-step explanation:

The variable X follows a binomial distribution, because we have n identical and independent events (19 cards) with a probability p of success and 1-p of fail (there is a probability of 1/4 to be club and 3/4 to be diamond, heart or spade). Then, the probability that x of the n cards are club is:

P(x)=\frac{n!}{x!(n-x)!}*p^{x}*(1-p)^{n-x}\\P(x)=\frac{19!}{x!(19-x)!}*0.25^{x}*(0.75)^{19-x}

So, the probability P of drawing at least 8 clubs is:

P = P(8) + P(9) + P(10) + ... + P(18) + P(19)

Replacing, the values of x, from 8 to 19, on the equation above, we get:

P = 0.0775

Additionally, the expected value E(x) and standard deviationS(x) for this distribution is given by:

E(x)=np = 19(0.25) = 4.75

S(x)=\sqrt{np(1-p)} =\sqrt{19(0.25)(0.75)} =1.8875

8 0
3 years ago
???? I don’t understand how to do this problem
Firdavs [7]

I think you are correct actually.

6 0
3 years ago
10 x 7 = 70
beks73 [17]
The answer is D it shrinks to 35
7 0
2 years ago
Read 2 more answers
There are 60 inches in 5 feet.how many inches are in 8 ft?
Karolina [17]

Answer:

63in

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Jerry is trying to earn $209 for some new video games. If he charges $47 to mow a lawn, how many lawns will he need to mow to ea
Helen [10]
At least 5. because 47x4=188 which isn’t enough money, and 47x5=235, which goes over but you have to have more money than less money
6 0
3 years ago
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