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shtirl [24]
3 years ago
10

An investment analyst has tracked a certain bluechip stock for the past six months and found that on any given day, it either go

es up a point or goes down a point. Furthermore, it went up on 25% of the days and down on 75%. What is the probability that at the close of trading four days from now, the price of the stock will be the same as it is today? Assume that the daily fluctuations are independent event
Mathematics
1 answer:
anastassius [24]3 years ago
7 0

Answer:

0.2109 or 21.09%

Step-by-step explanation:

In order to maintain the same price after two days, the stock must go up (U) on two days and go down (D) on two days, the sample space for this event is:

S={UUDD, UDUD, UDDU, DDUU, DUDU, DUUD}

There are 6 equally likely possible outcomes. The probability that the price of the stock will be the same as it is today is:

P =6* (0.25*0.25*0.75*0.75)\\P=0.2109=21.09\%

The probability is 0.2109 or 21.09%.

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4a²-8ab+4b=???????????? ​
GuDViN [60]

Step-by-step explanation:

4a² - 8ab + 4b²

= (2a)² - 2 * 2a * 2b + (2b) ²

= (2a - 2b) ²

Hope it helps :)

3 0
3 years ago
Math problem I need help giving brainly! Super easy
Alborosie

Answer:

answer is -3

Step-by-step explanation:

one solution

6 0
3 years ago
What is the distance from Cto D?
IRINA_888 [86]

Given:

The two points C(2,-1) and D(5,3) on a coordinate plane.

To find:

The distance from C to D.

Solution:

The distance between two points is defined by the distance formula.

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

The two points are C(2,-1) and D(5,3). Using the distance formula, we get

CD=\sqrt{(5-2)^2+(3-(-1))^2}

CD=\sqrt{(3)^2+(3+1)^2}

CD=\sqrt{(3)^2+4^2}

On further simplification, we get

CD=\sqrt{9+16}

CD=\sqrt{25}

CD=5

The distance from point C to D is 5 units. Therefore, the correct option is A.

8 0
2 years ago
-0.5(4a-1.5)+0.5a can someone help me out with this
taurus [48]

Answer:

Ygggg

Step-by-step explanation:

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5 0
3 years ago
on a number line the coordinates of x, y, z, and w are -6, -3, 1 and 4 respectively find the lengths of the two segments below t
exis [7]

The lengths of the two segments below then tell whether they are congruent

YZ = 4

XW = 12

not congruent

This is further explained below.

<h3>What is a number line?</h3>

Generally, A number line is a depiction of a graded straight line that serves as an abstraction for real numbers, which are symbolized by the

Number lines are used in introductory mathematics. It is generally accepted that a real number may be assigned to each point on a number line and that each point can be assigned to a real number.

YZ = Z - Y = 1 -(-3) = 4

XW = W -X = 5 -(-7) = 12

Because the segments are not the same length, they cannot be considered congruent.

In conclusion, It is self-evident that segment YZ will not have the same length as segment XW since it is just a portion of the latter.

Read more about the number line

brainly.com/question/13189025

#SPJ1

7 0
2 years ago
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