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Eva8 [605]
3 years ago
13

Write this as a faction in lowest term 40 minutes to 30 minutes is?

Mathematics
1 answer:
horsena [70]3 years ago
4 0
10/20 is the lowest fraction term
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Fill in the blanks. Optionshouse tracked the performance of their most active day traders and found that the probability of a wi
Aleksandr [31]

Answer:

If in a day, 458 call options are picked by these traders, around <u>   246.2  </u>of them will be winners, give or take<u>  10.67  </u>.

Step-by-step explanation:

Hello!

Your study variable is X: the number of winning calls in a sample of 458 calls.

The variable has a binomial distribution since you have two possible outcomes, that the call is a winning call (success) or that the call is not a winning call (failure), each call is independent and the probability of success is p= 0.5375 and the probability of failure q= 1-p= 1-0.5375= 0.4625.

The expected value for a binomial distribution is

E(X)= n*p= 458 * 0.5375= 246.175

And to know the standard error (or standard deviation) you have to calculate the square root of the variance:

V(X)= n*p*q= 458*0.5375*0.4625= 113.85

√V(X)= √113.85= 10.67

I hope it helps!

3 0
3 years ago
If a recipe calls for 31/2 cups of flour, how much flour will be needed if the recipe is tripled?
gayaneshka [121]

Answer:

93/2

Step-by-step explanation:

31x3=93

5 0
3 years ago
What is an equation of the line that passes through the point (-2,-6) and is parallel to the line x+2y=8x+2y=8?
poizon [28]

Answer:

y= -x/2-7

Step-by-step explanation:

We need to write an equation of the line that passes through the point (-2, -6) and is  parallel to the line x + 2y = 8

We need to find slope m and y-intercept b for the new line.

First we need to find slope m of the new line.

The given line x+2y=8 is parallel to new line.

When lines are parallel, there slope is same.

First writing equation in slope-intercept form:  where m is slope and b is y-intercept

Now comparing with  the slope is :

Now finding y-intercept b

Using point (-2,-6) and slope  we can find y-intercept

So, we get y-intercept b = -7

Now the equation of required line having slope  and y-intercept b = -7 is:

So, the equation of new line is:

3 0
2 years ago
A triangular brace has an angle measure of 30 degrees, with a side opposite
AfilCa [17]
I think is A,,,,,,,,,,,,,,,,
5 0
3 years ago
What is the Pythagorean theorem
telo118 [61]

The pythagorean theorem states that the sum of two legs to the 2nd power is equivalent to the hypotenuse to the 2nd power (leg^2+leg^2=hypotenuse^2) . Do note that the pythagorean theorem only works with right triangles.

8 0
3 years ago
Read 2 more answers
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