All categories

3 years ago

PLEASE HELP FAST

Mathematics

1 answer:

IceJOKER [234]3 years ago

3 0

-4,-9 I took the test and got the same answer.

You might be interested in

Thanks for helping <br> can you show the steps

Vikki [24]

Can you tell me what they are asking you to do
This is so I know if you understand the question

7 0

2 years ago

The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall sem

wariber [46]

Answer:

In order to calculate the expected value we can use the following formula:

$E(X)=\sum_{i=1}^n X_i P(X_i)$

And if we use the values obtained we got:

$E(X)=(1060*0.5) +(1400*0.1) +(1620*0.4)=1318$

Step-by-step explanation:

Let X the random variable that represent the number of admisions at the universit, and we have this probability distribution given:

X 1060 1400 1620

P(X) 0.5 0.1 0.4

In statistics and probability analysis, the expected value "is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values".

The variance of a random variable Var(X) is the expected value of the squared deviation from the mean of X, E(X).

And the standard deviation of a random variable X is just the square root of the variance.

In order to calculate the expected value we can use the following formula:

$E(X)=\sum_{i=1}^n X_i P(X_i)$

And if we use the values obtained we got:

$E(X)=(1060*0.5) +(1400*0.1) +(1620*0.4)=1318$

3 0

2 years ago

Pls help me answer this

pentagon [3]

There is nothing there

7 0

2 years ago

How many pounds are in 0.65 Tons

Ilia_Sergeevich [38]

Answer: 1300 pounds

Step-by-step explanation:

2000 x 0.65= 1300

6 0

2 years ago

Which is greater thirty six and nine thousandths or four tens

malfutka [58]

Answer:

four tens

Step-by-step explanation:

four tens is greater because:

four tens = 40

thirty six and nine thousandths = 36.009

36.009 < 40

6 0

3 years ago